SAN ANTONIO — Democratic presidential candidate Joe Biden on Friday vowed to lavish the state with attention as Texas is increasingly considered a potential battleground in 2020. “You’ll be seeing a lot of me before now and November, God willing,” he told a brimming crowd at a campaign rally here Friday evening. “Because if I’m honored to win this nomination, I’m gonna compete here in Texas to win Texas — to win Texas.” Speaking in front of supporters waving “Texans for Biden” signs, Biden cast the 2020 election as a battle for the “soul of the nation.” During what his campaign billed as ...