Cruz, Trump Jr. campaign together while O'Rourke kicks off college tour

A big campaign push to win one of Texas' Senate seats is underway.

Both Senator Ted Cruz and Representative Beto O'Rourke hit the road in Texas again on Wednesday.

O'Rourke launched a tour of college campuses. Cruz took the stage with the president's son, Donald Trump, Jr.

Cruz has hardly spent the same amount of time campaigning, focusing on his Senate duties.

During a rally in Wichita Falls, Texas, Cruz went after his opponent while Trump Jr. touched a lot of controversial topics that Cruz did not, including the nomination of Judge Brett Kavanaugh.

Trump Jr. quickly addressed the elephant in the room: why he is stumping for Cruz since he tangled with his father in the primaries..

“Ted Cruz came back with us,” Trump Jr. said. “This group of Texas boys sat with us in the lobby of the Trump Hotel two months after a contentious primary and sat with us for three hours. We had a ball. We formed a good relationship.”

Trump Jr. also touched on a topic Cruz did not focus on: the sexual assault allegations against Kavanaugh. Cruz sits on the senate judiciary committee that heard the testimony of Dr. Christine Blasey Ford.

“I know that this week, in particular, you are not allowed to have a beer if you're a Conservative,” Trump Jr. said. “Now if you're a Liberal, you can have cocaine and be the president. That's okay.”

Cruz stuck mostly to conservative talking points and drummed up the economy, and discussed Obamacare and guns.

“If you want a big government, gun grabbing Liberal, well the Democrats are giving you one,” Cruz said. “Here in Texas, we understand you go after the criminals. You lock up the bad guys, and you protect the rights of law-abiding citizens.”

The race between O'Rourke and Cruz is shaping up to be a close one. Most polls have Cruz with a single digit lead. It’s closer than some political observers initially expected.

O'Rourke has spent far more time on the campaign trail and continued that in Austin.

Vice President Mike Pence will campaign for Cruz in Dallas on Monday. President Donald Trump says he'll campaign for Cruz later this month.

Meanwhile, O'Rourke will be in Dallas this weekend as he continues talking education at local colleges.