TORONTO -- NDP Leader Andrea Horwath says her party will hold Doug Ford accountable for every decision he makes once he's sworn in as Ontario's premier.

Horwath, whose New Democrats are holding their first caucus meeting as the official Opposition today, says many Ontario residents have concerns about Ford's agenda, particularly when it comes to possible spending cuts.

She says the Progressive Conservative leader also needs to address controversies that emerged during the election campaign, including questions surrounding certain party nominations.

The New Democrats won 40 seats in last week's election.

The election also saw the Tories win a decisive majority and the Liberals reduced to seven seats, putting them below the threshold for official party status.

Ford is poised to officially take the premier's mantle on June 29.