The Democrats' progressive wing is enjoying a renaissance since the party's crushing defeat in the 2014 midterm election, chalking up victories and capturing the attention of congressional leaders on causes near and dear to their hearts.
Some of the change is structural. The election wiped out red state senators and House members in less progressive districts, reducing the new minority party to a more ideologically cohesive unit. The loss of the Democrats' Senate majority also breaks a four-year holding pattern in which leaders had to cut deals with the conservative-dominated House, making it somewhat easier for them to stand or fall on principle.
"It's very, very liberating," said one Democratic Senate leadership aide.
The left's determination to take the reins of the party is having an impact. Here are five prominent examples since the election.
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