Former Fox News host and former Trump adviser Kimberly Guilfoyle has been named as national chair of Eric Greitens’s Senate campaign, suggesting the Senate hopeful is attempting to solidify his ties to the former president. Trump has yet to offer Grietens or Missouri Attorney General Eric Schmitt an endorsement.

The Hill reports:

“Governor Greitens is a fighter who has stood with President Trump and has a proven record of advancing conservative, America First policies,” Guilfoyle, who is dating Trump’s eldest son Donald Trump Jr., said in a statement issued through Greitens’s campaign on Monday.

“I am proud to join this team as the National Chair and look forward to championing Governor Greitens’ vision throughout Missouri and around the country.”

By bringing Guilfoyle into his campaign, Greitens is sending an unmistakable message that he is the candidate most closely aligned with Trump, who remains the most influential Republican in the country and commands the support of an ultra-conservative base of voters.

The GOP Senate primary in Missouri is shaping up to be a clear test of Trump’s political strength in his post-presidential life. Some Republicans inside and outside of Missouri are hoping to thwart Greitens’s chances of securing the GOP nomination next year, believing that he could cost Republicans a relatively safe Senate seat in 2022.

In 2018, Grietens resigned as governor over blackmail allegations and allegations he had stolen a donor list from a nonprofit he founded to help his gubernatorial campaign however the charges were eventually dropped.