WATCH LIVE: Obama speaks at memorial for victims of Texas explosion

Yesterday, Obama ordered that flags be flown at half-staff on Thursday to honor the 14 killed and hundreds injured in the small Texas town.

Obama signed an emergency declaration authorizing federal disaster relief for the town. In his address to the nation Friday night following the capture of the Boston Marathon bombing suspect, Obama told the citizens of West "that they are not forgotten," pledging "the resources that they need to recover and rebuild."

The Obamas were in Dallas earlier in the day for the dedication of the George W. Bush Presidential Center, which includes a library and a museum. Three other living former presidents — Jimmy Carter, George H.W. Bush and Bill Clinton — were also in attendance for the ceremony.

"No one can be completely ready for this office. But America needs leaders who are willing to face the storm head on, even as they pray for God's strength and wisdom so that they can do what they believe is right. And that’s what the leaders with whom I share this stage have all done," Obama said at the dedication.

The White House announced Wednesday that the president would delay planned remarks at a Planned Parenthood gala in Washington originally scheduled for Thursday night to spend additional time with those injured in the blast. Obama will speak to Planned Parenthood on Friday.

—Justin Sink contributed.