WASHINGTON (AP) -- Newt Gingrich's daughter says the former House speaker will "reassess" his campaign after the votes are tallied in Delaware, potentially setting the stage for his exit from the Republican presidential race.

Jackie Gingrich Cushman said Tuesday that her father's campaign has slimmed down but is still winning over voters who aren't yet sold on Mitt Romney, who has effectively clinched the GOP presidential nomination.

Despite trailing Romney in convention delegates and fundraising, Gingrich has vowed to campaign until the party's late-summer convention in Florida.

Gingrich is carrying more than $4.3 million in debt and has been spending more money than he is taking in.

His daughter spoke on MSNBC.

Delaware is one of five states holding GOP presidential primaries Tuesday.