Addressing Texas’ effort to recover from the recent winter storm and the nation’s effort to recover from the coronavirus pandemic, President Joe Biden offered a message of unity Friday night in calling on the nation to put aside partisanship and instead focus on working toward a common cause.

"When a crisis hits our states like the one to hit Texas, it's not a Republican or Democrat that’s hurting, it's our fellow Americans who are hurting, and it's our job to help everyone in need. Look out for one another, leave nobody behind. That's what we've seen today in our visit," Biden said, addressing a group in a parking lot outside a mass vaccination site in Houston.

He committed to the people of Texas that the federal government will not turn its back in the long road to recovery: "We will be true partners to help you recover and rebuild from the storms and this pandemic and the economic crisis. We're in for the long haul."

Turning to the topic of the pandemic, Biden applauded the progress on vaccinations -- specifically pointing to the Food and Drug Administration's advisory panel recommending authorization of the Johnson & Johnson vaccine.

"It's incredible. The precision, the safety, the pride, the sense of purpose, everyone involved at that facility. And we've all seen the news about Johnson & Johnson vaccine, today’s, just -- the third safe, effective vaccine. And it's out. It’s -- They've approved it today,” he said.

The president made a plea for taking politics out of the pandemic, saying it should unite and not divide the nation.

"There is nothing partisan about this virus. It's too long we've allowed the virus to divide us. I met today with Gov. [Greg] Abbott, Sen. [John] Cornyn, conservative Republicans. I'm a Democratic president," he said. "We disagree on plenty of things, and there is nothing wrong with that, but there are plenty of things we can work on together. And one of them is represented right here today -- the effort to speed up vaccinations."

"We're not giving shots to Democrats or Republicans. I say it again, we're giving shots to Americans," he added.

-ABC News' Jordyn Phelps

Rep. Ted Budd, R-N.C., had a message for Democrats last summer about their proxy voting system set up during the pandemic: it was an "unconstitutional scheme."

"If you use Nancy Pelosi's proxy to skip work, you shouldn't get paid. It's as simple as that," he said in a June 30 Facebook video introducing his new bill withholding member pay for proxy voting.

Budd wasn't alone: A handful of House Republicans previously critical of the proxy vote system submitted letters to have colleagues vote for them, while they were scheduled to appear at CPAC.

Freshman Rep. Madison Cawthorn, R-N.C., tweeted last summer that leaders "show up no matter how uncertain the times are," and that Democrats were "cowards for hiding" and proxy voting.

He was also in Orlando on Friday, telling conservatives activists, "If we sit on the sidelines, we will not have a country to inherit."

"If we do not get involved and say that it is our duty to make sure that our country is responsible, that our country doesn't take away our liberties, then my friends, we will lose this nation," Cawthorn said.

Others Republicans scheduled to appear at CPAC on Friday who also planned to vote by proxy included Reps. Greg Steube of Florida, Virginia Foxx of North Carolina, and Matt Gaetz of Florida, who was one of the first Republicans to support proxy voting.

Curtis Kalin, a spokesman for Budd, said the congressman still opposes proxy voting, and will donate his salary for the days he used the system to a restaurant relief fund, given his bill last year, "The No Pay for Proxy Voting Act."

The Republicans who attended CPAC aren't alone in their questionable use of the proxy voting system -- established by House Speaker Nancy Pelosi, D-Calif., last year to cut down member travel to Washington during the COVID-19 pandemic.

Last year, Rep. Greg Stanton, D-Ariz., was caught voting during a Transportation Committee hearing from a boat during a family trip to Utah. Stanton later apologized and said he "messed up." And several House Democrats voted by proxy last May in order to attend a SpaceX rocket launch in Florida.-ABC News' Benjamin Siegel

At the second stop on Biden's visit to Texas, Biden, first lady Jill Biden and Houston Food Bank CEO Brian Greene toured the food bank where the first lady had already spent time volunteering Friday.

During the tour, the Bidens went to a room with rotating shelves that carry boxes of food, called the carousel room.

Biden also spent time walking around and speaking with volunteers, even taking a selfie with some. When asked by the press what he thought of the place, he said it is, "amazing, absolutely amazing."

"It’s incredible! It’s an incredible place. They do an -- and they have so many talented people here. It’s not just volunteers, they’re really talented people who do, you know, a lot of work outside before they got here."

Earlier Friday, Biden visited the Harris County Emergency Operations Center in Houston.

-ABC News' Molly Nagle

First lady Jill Biden arrived at the Houston Food Bank around 1 p.m. on Friday with Texas first lady Cecilia Abbott, according to a pool report.

Biden and Abbott first stopped in the main lobby for several minutes and received a rundown of the food bank’s food distribution process from Nicole Lander, the organization’s chief impact officer. Lander told the first ladies that the food bank distributes an average of 18 million pounds of food per month during disasters, the equivalent of 20 tractor-trailer loads. Lander also noted that one in four children in the Houston area lacks consistent access to nutritious food, according to the report.

Biden and Abbott then moved to a warehouse room and joined volunteers in packing bags of food for the food bank’s Backpack Buddy program, which distributes food on weekends to students who rely on school meals during the week.

Biden packed canned peaches, while Abbott packed boxes of raisins.

They were joined by Houston Independent School District Interim Superintendent Grenita Lathan, according to the pool report.

After their first stop, Biden and Abbott moved to a separate room to pack meals for seniors through the food bank’s Senior Box program, which is funded by the U.S. Department of Agriculture and provides a monthly box of food to roughly 11,000 low-income seniors in the Houston area, a separate pool report said.

Biden packed quick oats into boxes. Abbott also helped pack food boxes nearby, wearing a face mask emblazoned with the Texas flag.