Trump Deputy Campaign Manager David Bossie Expresses Confidence in Potential for Victory

David Bossie said that the Republican candidate is making gains in the last week

Regarding Clinton's potential legal troubles, he said that he believed it would cause voters to shy away from her.

"We're winning in Florida, we're winning in North Carolina," Bossie said.

In the latest ABC News/Washington Post tracking poll, enthusiasm for Hillary Clinton had showed signs of falling since the renewal of the FBI’s email investigation.

Clinton now finds herself a slim point behind Donald Trump for the first time since May, according to the poll produced for ABC News by Langer Research Associates.

Forty-six percent of likely voters support Trump in the latest results, with 45 percent for Clinton. A mere 0.7 of a percentage point divides them. Third-party candidate Gary Johnson has 3 percent, a new low; Jill Stein, 2 percent.

Trump boasted of the new poll this morning on Twitter.

"Wow, now leading in ABC/Washington Post Poll 46 to 45. Gone up 12 points in two weeks, mostly before the Crooked Hillary blow-up!" the tweet said.

ABC News' Gary Langer contributed to this story.

Editor’s note: An earlier version of this story described David Bossie as Trump campaign deputy manager and pollster. He is deputy manager but not the campaign pollster.