How much bigger can the Democratic field get?

Here are the stories our panel of top political reporters will be watching for in the week ahead, in this week’s “Inside Politics” forecast.

1. Room for a Western governor in 2020?

Montana Gov. Steve Bullock is expected to jump into the presidential race this week — making him the 22nd person seeking the Democratic nomination, AP Washington Bureau Chief Julie Pace says.
“He’s pretty unknown to most Americans and faces a real uphill climb in this big field with a lot of Democratic stars,” Pace said. “But he thinks he has a compelling case to make in a primary where electability has been one of the big questions from Democratic voters.”
Bullock won re-election by a comfortable margin in 2016 — even as those same voters went for President Donald Trump by 20 points over opponent Hillary Clinton