(NBC News) — The stage at the next presidential debate will be a little less crowded.
Ten candidates met the new polling qualifications for the next debate. Twenty took part in the earlier debates.
Two new polls, a USA Today-Suffolk University poll and a Quinnipiac University poll show former Vice President Joe Biden with a wide lead at 32 percent.
Other polls have shown the battle between the leading Democratic contenders is tightening.
A Monmouth University poll shows Elizabeth Warren and Bernie Sanders tied, with Joe Biden a percent behind.
It’s a big change for the former vice president, down 13 points since June in the same poll.
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