Wisconsin's primary will go forward Tuesday, with polling places opening for in-person voting and absentee ballots required to be postmarked by Election Day, after courts halted Democratic efforts to delay the primary and extend the deadline for ballots to be returned by mail. The state Supreme Court on Monday evening blocked Democratic Gov. Tony Evers' executive order signed Monday to delay the primary until June. Shortly afterward, the US Supreme Court reversed a lower court ruling that had given voters six more days to turn in their absentee ballots -- ruling that only those postmarked by Tuesday and arriving by April 13 be counted. Of nearly 1.3 million absentee ballots requested, about 550,000 had not yet been returned as of Monday morning.