With the 2:1 voter registration edge that Democrats hold in Maryland, pundits say that Hogan may not be as safe as he thinks.

”The Gonzales poll suggests Hogan cannot bank on Election Day support from voters who expressed only modest approval of his performance.”
Washington Post January 12, 2018
”…[Hogan] has to be looking warily at the blue wave in Virginia’s off-year election.”
Baltimore Sun January 30, 2018
”There is an incredibly energized Democratic electorate out there,” stated Todd Eberly, a political science professor at St. Mary’s College.
Washington Post November 8, 2017