Collins proposed to Ueland a three-part package: Tweaking the background checks bill sponsored by Toomey and Sen. Joe Manchin (D-W.Va.) to gain GOP support, passing a “red flag” law that allows temporary removal of guns from people deemed imminent threats, and cracking down on straw gun purchases.

And while Trump has made no specific commitment on legislation, his warm rhetoric toward new gun legislation could be a gamechanger.

“The president is key on this,” Collins said. “He does seem to be calling for some sort of background check tightening and also some sort of red flag bill. Now obviously the details matter a great deal but if he advocates those two positions that will help us with members of the Republican Caucus.”

Members of the Democratic Caucus, including Maine’s other senator, are skeptical.