Wisconsin Gov. Scott Walker (R) has maintained his lead over Milwaukee Mayor Tom Barrett (D) with less than a week to go before their recall election, according to a new poll from Marquette University.

Walker leads Barrett by 52 to 45 percent, according to the poll. That's virtually unchanged from his 50 to 44 percent lead in the last poll they conducted earlier in May.

The two will face off on Tuesday. Walker has held a lead in all recent polling of the race.

The poll was conducted from May 23-26.