WASHINGTON (AP) — As the prospect of a red wave grows, a series of Republican missteps including recruiting stumbles, weak fundraising and intense infighting is threatening the GOP's path to the Senate majority.

Arizona's Republican Gov. Doug Ducey dealt his party its latest setback late last week by announcing he would not challenge Democratic Sen. Mark Kelly this fall. His decision, which leaves no obvious front-runner in a crowded Republican primary, disappointed Senate Republican leader Mitch McConnell and his allies who had spent months privately encouraging Ducey to run.

But the GOP's shortcomings extend well beyond Arizona.

Republican candidates in Arizona, Georgia and Nevada are struggling to keep pace with Democratic fundraising. Recruiting failures have dashed GOP hopes in reach states like Maryland and threaten a prime pickup opportunity in New Hampshire. And a recent plan that would raise taxes on low-income Americans and seniors, released by the Republican Senate midterm chief, Florida Sen. Rick Scott, is putting GOP candidates in a difficult position across states like Wisconsin, Ohio and Florida.

The challenges amount to an early warning sign for Republicans less than two months before the opening Senate primaries of the 2022 election season. With Democrats confronting historic headwinds and the weight of an unpopular president, a Republican Senate majority is easily within reach. But, sensing discord within the GOP, Democrats are suddenly optimistic they may have a path to hold — or even expand — their majority.

Rep. Val Demings, the leading Democrat in the race to unseat Florida Sen. Marco Rubio, acknowledged that her party has struggled to highlight its accomplishments — including sweeping coronavirus pandemic relief and a massive infrastructure package — in the face of President Joe Biden's political woes. But she seized on Scott's plan as a clear contrast for how Democrats and Republicans would govern differently.

"This plan is toxic. It would hurt working families. It would hurt seniors. And Rubio's going to own it," Demings said in an interview.

Rubio's campaign declined to say specifically whether he supported Scott's plan when asked, issuing a statement instead that called Demings "a do-nothing member of Congress who has never even passed a real law, much less a tax cut."

With eight months until Election Day, the political landscape remains in flux. The health of the economy, a Supreme Court decision on abortion and the war in Eastern Europe remain major variables. But history suggests Democrats would be lucky to preserve their fragile Senate majority in November.

In a 50-50 Senate, Democrats would lose control of Congress' upper chamber if they lose a seat. And without the majority, they lose any hope of enacting Biden's plans to bolster child care, education, family leave and environmental protection while protecting voting rights.

The GOP's best pickup opportunities rest in Arizona, Georgia and Nevada, according to Steven Law, a McConnell ally who leads the most powerful Republican-aligned Senate super PAC. He said he's increasingly optimistic about the state viewed as the Democrats' best pickup opportunity, Pennsylvania, and sees competitive races in Republican-held states like North Carolina, Florida and Missouri trending in the right direction.

Given historic trends against the party that occupies the White House, Law predicted that a state like Colorado or Washington state could become more competitive than expected this fall as well.

"The fundamentals of this election cycle are still very, very good," Law said. "I don't think recent challenges or setbacks or issues are going to define it at all. There are going to be bumps in the road. But at the end of the day, this election is going to be about the historic unpopularity of Joe Biden and his agenda, which virtually all Democrats have blindly supported."

A February AP-NORC poll found that more people disapproved than approved of how Biden is handling his job, 55% to 44%, while just 29% of Americans thought the nation was on the right track.

Democratic strategists acknowledge their party's uphill odds in the months ahead. But on paper, at least, the current Senate landscape gives them an inherent advantage.

"Frankly, Democrats just need to hold seats in states Biden won," said Jessica Floyd, the president of the pro-Democratic super PAC American Bridge, which launched a $5 million paid advertising campaign late last week across four states: Arizona, Georgia, Nevada and Pennsylvania. "The map matters."

While Biden did win all four of American Bridge's target states, the Democratic president won three of them by 1 percentage point or less and the other by just 2 percentage points. Those margins should give Democrats little comfort.

Republican Glenn Youngkin narrowly defeated former Democratic Gov. Terry McAuliffe in Virginia's high-profile governor's race last fall, even though Biden had carried the state by 10 percentage points a year earlier. Longer-term historical trends are no less daunting for Democrats: Over the last 40 years, the party that holds the White House has won Senate seats in only two midterm elections.

Meanwhile, escalating tensions among Republican leaders at the highest levels threatens to undercut the party's ambitions. McConnell and former President Donald Trump have long sparred over Republican messaging and candidate endorsements. In some states, Trump favors far-right nominees who struggle in statewide general elections.

But for now, a simmering feud between McConnell and Scott has taken center stage.

Scott, the leader of the GOP's Senate midterm efforts, released an 11-point plan late last month that would impose a modest tax increase for many of the lowest paid Americans, while opening the door for cutting Social Security and Medicare. The Senate Democrats' political arm released a radio ad within 24 hours declaring, "If Senate Republicans win, we pay the price."

Staffers from Scott's Senate committee moved into triage mode almost immediately, reaching out to Republican campaigns across the country to gauge their frustration while offering messaging help, according to senior Republican strategists with direct knowledge of the situation.

The strategists, who requested anonymity to discuss private deliberations, said many Senate Republicans had been willing to ignore what they viewed as Scott's presidential ambitions over the last year. But that changed when the Florida senator released his latest proposal, which they considered an "unforced error" that triggered a wave of anger across the party.

McConnell could not stay silent as he faced reporters last week on Capitol Hill.

The Senate Republican leader forcefully rebuked Scott's plan during the Republican leadership's weekly news conference, which Scott was part of.

"Let me tell you what would not be a part of our agenda," McConnell said moments after Scott stepped away from the event. "We will not have as part of our agenda a bill that raises taxes on half of the American people and sunsets Social Security and Medicare within five years."

Scott refused to respond on Sunday when asked about McConnell's comments during an appearance on Fox News Channel's "Sunday Morning Futures," offering instead a defiant defense of his broader plan.

"It's my ideas," Scott said. "There's going to be other ideas."

Amid such Republican infighting, Democrats are pressing their cash advantage on the ground in key states, even as GOP campaign committees in Washington report record fundraising hauls.

In Nevada, Sen. Catherine Cortez Masto, one of the nation's most endangered Democrats, reported $10.5 million cash on hand at the end of last year, compared to Republican former state Attorney General Adam Laxalt's $1.7 million.

Georgia Democratic Sen. Raphael Warnock finished the year with $22.9 million in the bank, while likely Republican challenger Herschel Walker, the former football star who has been endorsed by Trump, reported $5.4 million.

And Arizona Democrat Kelly, a former astronaut who won a 2020 special election to serve out the final two years of the late Sen. John McCain's term, reported $18.6 million in the bank. Arizona's Republican state Attorney General Mark Brnovich, the best-known Republican in a crowded primary field, reported less than $800,000 in the bank.

Warnock and Kelly pressed their financial advantages by launching an initial round of television ads in recent weeks as Republican candidates in both states focus on fighting each other. It's much the same in New Hampshire, where Democratic Sen. Maggie Hassan placed $13 million in initial TV and radio advertising reservations for the fall, much of it in the expensive Boston media market, while three Republicans will be locked in a primary through mid-September.

Back in Washington, Scott seemed to be in good spirits as he described Biden and his agenda as "wildly unpopular."

"The Democrats are simply failing American families and the voters are ready to give them a butt kicking this November," Scott told AP.

Meanwhile, in Florida, Demings offered a window into the Democrats' challenge by refusing to say whether she wanted Biden to campaign in the state on her behalf when asked.

"I grew up poor, Black and female in the South," Demings told The Associated Press. "I've never depended on someone else to do the work for me or someone to give me a pass or come to rescue me."

"I'm excited about where we are in this race," she said.

___

Peoples reported from New York. Associated Press writer Jonathan J. Cooper in Phoenix contributed to this report.

This story has been corrected to show that three, not two Republicans are in New Hampshire primary.