Former Alabama Sen. Jeff Sessions’ decision to return to politics might be rockier than he anticipated, given his clashes with President Donald Trump.

Loyalty to the president is a central factor in GOP primaries and, as Trump’s attorney general, Sessions drew the president’s ire for recusing himself from the investigation into Russian meddling in the 2016 election.

Alabama GOP Rep. Mike D. Rogers, who had not spoken directly with Sessions, told CQ Roll Call last week, “I don’t really see how [Sessions] can get a toehold this late in the process.”

“And then there’s the fact that the president of the United States despises him, has openly said he will vigorously campaign against him,” Rogers added. “That’s an awfully steep hill in Alabama where, as you know, Donald Trump has the highest favorables of any state in the union.”