Today's installment of campaign-related news items from across the country.
* Though the Koch brothers have hosted some events for leading Republican presidential hopefuls, they haven't settled on a candidate. “I have no plans to support anybody in the primary now,” Charles Koch told USA Today yesterday.
* Bernie Sanders picked up an endorsement today from the American Postal Workers Union, which has roughly 200,000 members.
* The latest Gallup poll found Congress' approval rating dropping to just 11%. It's the second lowest on record, barely beating the 9% rating the institution received in November 2013.
* A new University of Texas/Texas Tribune Poll shows Ted Cruz and Donald Trump tied at 27% each among Republicans in the Lone Star State. Ben Carson is third in the poll with 13%, followed by Marco Rubio's 9%.
* The same poll showed Hillary Clinton with the backing of 61% of Texas Democrats, well ahead of Bernie Sanders and Martin O'Malley.
* Chris Christie this morning blamed President Obama in part for recent, racially charged controversies on some college campuses. Yesterday, the New Jersey governor also said he would refuse to consider meeting with Black Lives Matter activists.
* Sen. Lindsey Graham (R-S.C.) argued yesterday he would shoot down Russian planes in Syrian airspace. Remember, in Republican circles, he's supposed to be one of the "experts" in matters related to national security.
* And in this week's debate, Carly Fiorina boasted that she met Russian President Vladimir Putin, but "not in a green room." As it turns out, what she said wasn't quite true.