Republican presidential candidate former Massachusetts Gov. Mitt Romney addresses the Republican Leadership Conference on Mackinac Island, Mich., Saturday, Sept. 24, 2011. (AP Photo/Carlos Osorio) The Associated Press Republican presidential candidate Rick Perry responds to cheering supporters at the Conservative Political Action Conference (CPAC) at the Orange County Convention Center in Orlando, Fla., Friday, Sept. 23, 2011. (AP Photo/Joe Burbank, Pool) The Associated Press Republican presidential candidate Ron Paul addresses the Conservative Political Action Conference (CPAC) at the Orange County Convention Center in Orlando, Fla., Friday, Sept. 23, 2011. (AP Photo/Joe Burbank, Pool) The Associated PressWASHINGTON (AP) — Mitt Romney, Rick Perry and Ron Paul have banked millions, but the rest of the Republican presidential hopefuls are struggling or broke four months before the first nominating contests take place.Ahead of a critical fundraising deadline Friday, the GOP's contenders are courting donors in Texas, Georgia and New York in last-minute attempts to pick up final dollars. The push comes before they have to file a three-month summary of their finances.Romney's campaign says he could raise as much as $18 million. Perry donors claim he could hit $10 million. Paul's campaign asked supporters to celebrate the Texas congressman's Aug. 20 birthday with a donation — and they gave him $1.6 million just that day.The rest of the field, though, lags far behind, putting their candidacies into question.