The battle over illegal immigration will define the 2018 midterm elections.

That is bad news for Democrats.

And Nancy Pelosi just used the four words that could kill her party and end her career.

Donald Trump signed an executive order that untied his hands by allowing the government to detain families together while they await their deportation hearing.

This order ends the separation of families and still fulfills Trump’s promise to end the practice of catch and release.

“Catch and release” – whereby illegal aliens are giving a court date after being arrested for crossing the border – led to a flood of illegal aliens remaining in America and abusing our system.

A Center for Immigration Studies report found that over the last twenty years, a full 37 percent of illegal aliens just didn’t show up for their court date.

Democrats screamed at the top of their lungs when Trump signed his new executive order that maintained his zero tolerance enforcement policy and still maintained family unity.

Nancy Pelosi was one of the loudest voices condemning the President.

Pelosi blabbed in a statement that enforcing immigration law was a “form of child abuse.”

The Democrats leader in the House wrote:

“The President’s Executive Order seeks to replace one form of child abuse with another. Instead of protecting traumatized children, the President has directed his Attorney General to pave the way for the long-term incarceration of families in prison-like conditions.”

But Republicans would be thrilled to fight the Democrats for the 2018 midterm elections on whether immigration law should be enforced at all.

Right now, Democrats are expected to gain seats.

The party out of power usually does.

But Trump’s proposals to detain families as a unit while maintaining his zero tolerance policy is politically popular.

An Economist/YouGov poll found that by a nine point margin, Americans favored zero tolerance enforcement of United States immigration laws.

And of all the options presented to deal with illegal immigrants caught crossing the border, detaining families while they await their deportation hearing was the most popular with 44 percent.

The catch and release policy – which means complete open borders – favored by Pelosi and the Democrats received just 19 percent support.

In midterm elections, each party needs to rally its base.

Pelosi calling enforcing immigration law child abuse is a signal to Democrat voters that their leaders have bought in fully to complete open borders.

That may play well in San Francisco and Manhattan.

But in Middle America, comparing law enforcement officers defending America from illegal immigration to child abuse is a political death sentence.

And there are already at least 20 Democrats running for the House this fall that have pledged not to support Pelosi for Speaker.

A new generation of Democrats who don’t owe Pelosi or her fundraising prowess anything is about to take the stage.

Should Democrats fail to win the House this November, liberals will be forced to come to a reckoning.

It will be comments like Pelosi’s that explained why they fell short.

And Democrats could end her career by removing her from leadership.