Hillary Clinton maintains a lead over Donald Trump, but lagging interest among some of her supporters poses a potential turnout challenge for Democrats with less than nine weeks before Election Day, according to a new Washington Post-ABC News poll.

Clinton holds a 46 percent to 41 percent edge over Trump among likely voters, followed by Libertarian candidate Gary Johnson at 9 percent and the Green Party’s Jill Stein at 2 percent. Clinton’s lead swells to 10 percentage points among the wider swath of registered voters, 45 percent to 35 percent, similar to her 45 percent to 37 percent edge last month.

The findings come at a time when the margins between Clinton and Trump have narrowed in some battleground states and when some national polls also have shown a tightening in the competition. Heading toward the first presidential debate on Sept. 26, though, Trump still appears to have the more challenging route to victory.

[Full Post-ABC poll results]

Both candidates’ reputations have been battered by the campaign, with more than 6 in 10 voters saying each candidate is not honest and trustworthy, and with majorities critical of Clinton’s ethics as secretary of state as well as Trump’s qualifications and his behavior toward women and minorities.

Asked about major campaign issues in the past month, almost 2 in 3 voters disapprove of Trump’s explanation of his policy for handling undocumented immigrants, while nearly 6 in 10 say Clinton granted special favors to donors of the Clinton Foundation.

Both candidates’ coalitions are united more by antipathy toward their opponent than enthusiasm for their own candidacy. Fewer than half of Trump’s supporters — 46 percent — say they are “very enthusiastic” about his candidacy, while that number drops to 33 percent for Clinton’s supporters. Meanwhile, 8 in 10 Trump supporters feel Clinton would do real damage to the country as president, while 83 percent of Clinton supporters feel the same way about Trump.