Do you remember when the pundits were talking about how the Tea Party movement was going to transform American politics? Do you remember when establishment Republicans in Congress were scared to death of having Tea Party challengers come after their seats? Well, those days are over. In primary after primary in 2014, it has become abundantly clear that the establishment is in full control of the Republican Party once again. And recent polling data also supports the theory that the Tea Party movement is losing steam. Back in 2010, 31 percent of all Americans supported the Tea Party. Today, an all-time low 15 percent of all Americans do. So is the Tea Party dead? Perhaps not yet, but without a doubt it is on the ropes.

Ever since the last election, Tea Party activists have been pointing toward 2014 as the year when top establishment Republicans would finally be held accountable for acting like liberal Democrats. But instead, establishment Republicans have been crushing their Tea Party opponents in contest after contest.

On Tuesday, Senate Minority Leader Mitch McConnell destroyed his Tea Party challenger in Kentucky by 25 percentage points. During the campaign, McConnell was not afraid to verbally attack the Tea Party movement, but that did not seem to energize the voters on the other side much at all. Back in March, McConnell predicted that establishment Republicans like him would “crush” the Tea Party all over the nation, and it now looks like his prediction is going to be quite accurate…

This election season, Republicans led by Senator Mitch McConnell of Kentucky are taking a much harder line as they sense the majority within reach. Top congressional Republicans and their allies are challenging the advocacy groups head on in an aggressive effort to undermine their credibility. The goal is to deny them any Senate primary victories, cut into their fund-raising and diminish them as a future force in Republican politics. “I think we are going to crush them everywhere,” Mr. McConnell, the Senate Republican leader, said in an interview, referring to the network of activist organizations working against him and two Republican incumbents in Kansas and Mississippi while engaging in a handful of other contests. “I don’t think they are going to have a single nominee anywhere in the country.”