Donald Trump and Hillary Clinton are virtually deadlocked in Colorado, according to polling released Wednesday by the Crossley Center for Public Opinion Research at the University of Denver.

Clinton clings to a 1-point lead, 42 to 41 percentage points, in a two-candidate question, but they are tied at 39 when Libertarian Gary Johnson and Green Party candidate Jill Stein are added in.

Clinton has held double-digit leads in Colorado in recent weeks, and nationally, as of Monday, she had an average lead of 1.7 percent in major polls, according to RealClear Politics.

In Colorado on Monday, she had an average lead of 3 percentage points in major polls.

The latest poll gave incumbent Democrat Michael Bennet a lead of 48 percent to 41 percent over Republican challenger Darryl Glenn in Colorado’s U.S. Senate race.

The University of Denver poll talked to 55O likely voters, using cell phones and land lines, Saturday through Monday. The margin of error is plus or minus 4.2 percent.

“The election had been going along very well for Clinton until the [FBI Director Jim] Comey letter,” said Floyd Ciruli, director of Crossley Center for Public Opinion Research. “And ever since then, she’s been on the defensive – that may be showing up in the numbers.”

The poll indicated 67 percent of likely voters opposed Amendment 69 to create the first U.S. universal health-care program called ColoradoCare, with 25 percent in support.

On Amendment 70 to raise the minimum wage incrementally from $8.31 an hour to $12 an hour by 2020, 54 percent were in favor and 41 against.

On Proposition 106 to allow terminally ill people to obtain medical aid in dying, 62 percent were in favor and 32 percent were against.

On Amendment 71, to make it more difficult to amend the state constitution at the ballot, 53 percent were in favor and 34 percent were against.

Voters for and against were split at 48 percent on raising the state cigarette tax to fund health programs through Amendment 72.

Sixty-two percent favored switching to a state presidential primary, as proposed in Proposition 107, and 31 percent were against.

Fifty percent were in favor of Proposition 108 to allow unaffiliated voters to participate in party primaries and 40 percent were against.