The FBI search of President Trump’s home at Mar-a-Lago on August 8 launched the president back into the forefront of national politics, the voters’ minds, and, apparently, the 2024 Republican presidential field.

Mr. Trump has been a Republican favorite for president since he left office in January 2021. Earlier this summer, though, it was looking like the GOP might have been moving in a different direction.

The Granite State was the first to show Republicans turning away from the president, when on June 20 a poll from the University of New Hampshire found Governor DeSantis leading Mr. Trump by two points in a hypothetical presidential primary.

Friday, however, Saint Anselm College reports that Mr. Trump has since surged 13 points in the polls in New Hampshire. According to its poll, the president leads the Florida governor by 21 points in the 2024 primary race.

New Hampshire is a strategically important early primary state, and has long been hailed as a bellwether in presidential campaigns. 

In national polling, the president reached the nadir of his popularity in late July, when Suffolk University and USA Today polling found Mr. Trump leading Mr. DeSantis by nine points — 43 percent to 34 percent.

A YouGov/Yahoo News poll discovered more of the same in a poll released on August 1, suggesting Mr. Trump leading Mr. DeSantis 44 percent to 35 percent.

Just 10 days later, Morning Consult and Politico found a decisive swing in favor of the president, with Mr. Trump carrying 56 percent support to Mr. DeSantis’s 18 percent. The search of the president’s home occurred in the interim between the two sets of polls.

It was on August 8 that the FBI retrieved boxes of classified files from the president’s home as part of an investigation into the president concerning the possible mishandling of federal documents.