Hillary Clinton and “Lock her up!” is so 2017.

However, Donald Trump Jr. field-tested a new chant and new Democratic villain at one of his father’s rallies, this one in Michigan.

Rep. Alexandria Ocasio-Cortez (D-NY), a freshman member of Congress, increasingly has become a foil for Trump and his Republican allies, particularly since she introduced the expansive “Green New Deal” with Sen. Ed Markey (D-Mass) both to address climate change and economic inequality.

The program has attracted much derision on the right, both for cost and its attention to “cow farts.”

As her profile has risen in recent months, Ocasio-Cortez has become known by the shorthand moniker “AOC.”

At the Trump rally in Michigan, the crowd, which once would chant the Hillary Clinton taunt, “Lock her up!” instead broke out in, “AOC sucks!”

“Think about the fact that every mainstream, leading Democratic contender is taking the advice of a freshman congresswoman who three weeks ago didn’t know the three branches of government,” Don Jr. told the crowd.

Ocasio-Cortez is a self-identified democratic socialist. Although she won’t be running for president next year, a strategy appears to be emerging to tie Democrats to her, overall, to paint them as too extreme.