A national effort to raise the Democratic Party flag in Texas, Battleground Texas, rolled out this week with high aspirations. The group wants to increase voter registration and more to the point, voter participation. Fewer than 600,000 people voted in last year’s statewide Democratic primaries, out of 13.1 million registered voters. That was less than half the size of the turnout in the Republican primary which, at about 8 percent of the voting age population, was nothing to crow about, either. Jeremy Bird and Jenn Brown from the president’s last campaign will head the effort, with a Texan, Christina Gomez, coming from the Democratic National Committee as digital director.