Tommy Tuberville has taken a commanding lead over Jeff Sessions in the Republican runoff for the U.S. Senate, a new poll shows. The survey of likely Republican voters by Montgomery-based Cygnal gave Tuberville 55 percent of the vote, to Sessions's 32 percent. The poll suggests that support for Sessions has stagnated since the March primary, in which he received 32 percent, while Tuberville's share of the vote has grown dramatically. Analysts say it appears supporters of other former candidates, including Rep. Bradley Byrne (R-Fairhope), have shifted to Tuberville. Sessions, the former attorney general who previously held the Senate seat for 20 years, has struggled to reconnect with Republican voters, following his controversial recusal from the Russia investigation. President Trump strongly criticized Sessions following the primary, and enthusiastically endorsed Tuberville. The runoff is set for July 14. The winner will face incumbent Doug Jones, widely considered the most endangered Senate Democrat, in the November election.