Georgia's Republican Senate primary remains closely contested ahead of Tuesday's vote, with trader consensus reflecting Mike Collins's narrow lead over Derek Dooley amid a large pool of undecided voters exceeding 50 percent in recent surveys. Governor Brian Kemp's endorsement and associated television advertising have boosted Dooley's momentum and fundraising in recent weeks, narrowing the gap after earlier polls showed Collins ahead by double digits. Both leading candidates emphasize alignment with President Trump on key issues such as immigration and economic policy, though neither has secured his formal backing. High undecided levels and the prospect of a June 16 runoff if no candidate reaches a majority continue to sustain volatility in the race.