Other Democrats thought to be weighing their options include Sens. Amy Klobuchar (Minn.), Kirsten Gillibrand (N.Y.), and Chris Murphy (Conn.), as well as Govs. Terry McAuliffe (Va.), John Hickenlooper (Colo.), Jay Inslee (Wash.) and Steve Bullock (Mont.).

“We’re seeing huge excitement out there for Democrats as we fight for policies that support American families and expand economic opportunity, while Republicans are working to strip away healthcare from millions and are led by one of the most unpopular presidents in history,” Sabrina Singh, deputy communications director for the Democratic National Committee, said in response to questions about the possible field of candidates.

People close to Trump aren’t worried about the potential competition.