Donald Trump is now within striking distance of a fading Hillary Clinton in Wisconsin, according to a poll released on Wednesday, providing him with another possible path to securing the electoral votes required to capture the presidency.

According to a poll conducted by Marquette Law School, 42 percent of registered voters said they are supporting the Democratic presidential nominee and 37 percent are backing her Republican opponent Donald Trump. Nineteen percent expressed no preference. In the previous poll conducted Aug. 4-7, Clinton was supported by 46 percent of registered voters and Trump by 36 percent, with 16 percent not having a preference.

Among likely voters, the margin is even narrower, with Clinton clinging to 45 percent support and Trump at 42 percent in the new poll. Of that number, 10 percent say they will not support either candidate. That is a drop for the Democratic candidate since the August poll, where 52 percent of likely voters supported her, while Trump was backed by 37 percent.

In a four candidate field, Clinton led Trump 41 percent to 38 percent, with Libertarian nominee Gary Johnson pulling 11 percent and Green Party's nominee Jill Stein at 2 percent.

"After a strong bump in Clinton's favor following the national party conventions, the electorate in Wisconsin has returned to about where the vote stood in July, prior to the conventions," said Charles Franklin, director of the Marquette Law School Poll and Professor of Law and Public Policy, in a statement.

The likely voter results put Trump well within the 5-point margin of error. The poll surveyed 803 registered Wisconsin voters from Aug. 25-28, 2016, screening out 650 as likely to vote.

A Trump win in Wisconsin would be significant. The state hasn't voted for a Republican presidential candidate since President Reagan's 1984 landslide, and a win there this year would make it easier for Trump to lose other swing states (including Pennsylvania, New Hampshire, Virginia, and Colorado) and still reach the 270 votes necessary to capture the presidency.