Has the liberal wing of the Democrats finally pushed the party too far?

From Hotair:

Alexander Bolton has a column at The Hill where he explores the question of whether or not the ascendant, hard left, liberal wing of the Democrats has finally pushed their part to a tipping point in the run-up to the next presidential election and how that might affect some downticket races as well. The main area he focuses on is the anti-arms race going on among Democrats as they each try to one-up each other on who would ban the most guns the fastest. But given the consistent poll numbers we’ve seen on the subject of gun rights, are they alienating a significant section of the general election audience and putting unwanted pressure on their Senate candidates in critical states?

There’s division within the Democratic Party over how aggressively to push gun control, an issue that is growing more urgent among the liberal base but threatens to hurt centrists running in battleground states.

While Democratic senators from liberal states such as Connecticut and Oregon are rolling out new gun control legislation in Washington, some strategists warn the issue could alienate pro-gun voters in key states such as Colorado, New Hampshire, Florida, Pennsylvania and Nevada.

But it could be difficult for Democratic Senate candidates to keep the gun issue at bay, given the rising fervor in the liberal base for action.

Democratic presidential candidates Hillary Clinton and Martin O’Malley have tried to tap into the grassroots anger over gun violence, zeroing in on the issue during their first presidential debate.

The problem with the “swing states” is that almost all of them tend to swing toward gun rights, often heavily. The Democrats are going to have a serious messaging problem if a significant number of their candidates go off tone and start contradicting their presidential candidate on the campaign trail. But by the same token, if they toe the party line they’re going to give their GOP opponents a serious opening.

Push harder! Please!!!