Democratic National Convention

Khizr Khan, whose speech at the Democratic National Convention about his slain son has garnered admiration from Democrats and some Republicans, but ire from Donald Trump, says the candidate needs to have "patience and tolerance for criticism."

Ryan Poppe / Texas Public Radio

San Antonio Congressman Joaquin Castro pumped up Texas Democrats Thursday with his vision of how their Party can become competitive in Texas again. Castro also confirmed he may mount a campaign to unseat Republican Senator Ted Cruz.

Maryland Democratic Sen. Barbara Mikulski and Georgia Rep. John Lewis will formally nominate Hillary Clinton for the presidency on Tuesday night, PBS NewsHour's John Yang and NPR's Mara Liasson report.

Democrats have become accustomed to having the best speech at their quadrennial convention given by someone named Obama. This year, that person might also be named Michelle.

Hers was not the keynote, nor the most anticipated, nor the longest speech of the night. But it mesmerized and subdued the raucous and rebellious crowd, focusing the enormous energy of Philadelphia's Wells Fargo Arena just where convention organizers had hoped — on Hillary Clinton.

The first night of the Democratic National Convention in Philadelphia was marked by acrimony despite constant calls for unity by party leaders.

Still reeling from the revelations of an email leak, supporters of Sen. Bernie Sanders disrupted the proceedings throughout the night with boos and jeers. A night that was supposed to mark the beginning of a party coalescing behind its presidential nominee was instead punctuated by acts of division.