Tens of thousands of anti-abortion advocates are expected to attend the march.
Jeh Johnson is visiting the border for the first time since he was sworn in.
United Airlines dismissed a former congressman’s complaint Thursday as he went on a tweeting rampage about how he was switched to the back of a flight from first class.
Bush, 89, lives in Houston and is known for wearing flashy socks.
Just over 40 percent of a quarter-million tweets over the last two days reacting to Chris Christie’s bridge scandal were critical of him, according to Pew Research Center.
Only 14 percent, meanwhile, defended the governor.