Texas’ senior senator isn’t letting on — publicly, at least — that there’s any rift with the junior senator.U.S. Sen. John Cornyn told media recently that his having to change his vote to get past a filibuster by fellow Republican Sen. Ted Cruz on the debt ceiling two weeks ago was “old news.” Asked about Cruz, Cornyn said, “My relationship with Cruz is a good working relationship.” But that doesn’t mean he’s getting Cruz’s vote in the March 14 primary.Cruz, who was recently asked about supporting Cornyn during a Politico breakfast, replied, “That’s between me and the ballot box.”Cornyn, the Senate minority whip, told reporters he wants enough votes to avoid a runoff. He has seven opponents.Presidential displaySoon, a trip to the George W. Bush Presidential Center — which includes a library, museum and institute — will yield more than a walk down memory lane.Starting next month, artwork created by the country’s 43rd president also will be on display.“The Art of Leadership: A President’s Personal Diplomacy” will display more than two dozen “never-before-exhibited portraits” painted by George W. Bush as it seeks to show the relationships Bush “forged with world leaders to shape international policy and advance American interests abroad,” according to the library.The exhibit will also include photos, artifacts and “personal reflections” to show the development of those relationships.Bush, who signs his paintings simply with “43,” took up painting after leaving the White House, and his artwork has been on display as the official Christmas ornament offered for sale last year at his presidential center’s gift shop.Texas pols in D.C.Gov. Rick Perry made a surprise appearance at the White House recently at a formal dinner the president holds every year welcoming the nation’s governors who are attending the National Governors Association winter meeting.Perry has made it a big point not to attend the association’s events, saying the group’s dues are too high, and goes to Washington for the Republican Governors Association meetings. And Perry has pretty much been a no-show at the White House dinner since President Barack Obama took office in 2009. Of course, when President George W. Bush, a former Texas governor, was in the White House, Perry would even sleep over.But maybe Perry was feeling it was his last chance at the dinner, since he’s retiring this year.More D.C. visitsMeanwhile, a Texas gubernatorial candidate, state Sen. Wendy Davis, D-Fort Worth, and lieutenant governor candidate, Sen. Leticia Van de Putte, D-San Antonio, were in D.C., too.Each received the National Presidential Award from the League of United Latin American Citizens.Davis, who received hers at a luncheon at the Ronald Reagan building during the group’s annual legislative conference, went off to hold a fundraiser in New York City and then back to D.C. for another at a home in Georgetown. Davis was honored for her work on education funding.Van de Putte got her award at the gala in the evening at the Reagan building for her contributions to public service.