President Donald Trump is weighing whether to endorse a candidate in the competitive Republican primary for a Texas Senate seat, telling NBC News on Saturday that he is still mulling his options.

Trump indicated that both Senator John Cornyn and Texas Attorney General Ken Paxton are viable candidates in the race, describing both as electable options as he considers a potential endorsement.

Meanwhile, a super PAC supporting Paxton's Senate bid has launched television advertisements in Palm Beach, Florida, where Trump is spending the weekend at his Mar-a-Lago resort. The Lone Star Liberty PAC released the new ad as Trump's endorsement decision remains pending in what has become a competitive primary runoff.

The timing and location of the PAC's ad buy appears designed to reach Trump directly as he deliberates on his endorsement choice. The former president's backing could prove significant in the Republican primary, given his continued influence within the party.

The Texas Senate race represents one of several competitive Republican primaries where Trump's endorsement is being actively sought by multiple candidates.