Joe Biden and Elizabeth Warren have been debate targets of rival 2020 Democrats at candidate face-offs in recent months. Now, it may be Pete Buttigieg’s turn.

The Atlanta debate on Wednesday, sponsored by the Democratic National Committee, offers opponents of the South Bend, Indiana, mayor a chance to take him down a peg after some polls have shown the 37-year-old surging. His rise, less than three months out from the first nominating contests, the Iowa caucuses on Feb. 3 and the New Hampshire primary on Feb. 11, have moved him closer to the top tier of 2020 Democrats, which includes Biden, the former vice president, Warren, a Massachusetts senator, and Sen. Bernie Sanders of Vermont.