Results from early voting should start rolling out after polls close at 7 p.m. It will be hours before all races are called.

This Tuesday, Tribune reporters are watching two blockbuster senate primaries, an open attorney general seat, and more high-stakes, competitive races up and down the Texas ballot.

While he has stayed out of some blockbuster contests, the president has otherwise spread his endorsement generously in Texas. The strategy has helped him form politically beneficial alliances in the past.