AUSTIN, Texas (AP) — Women running for Congress surged to big wins and Democrats smashed recent turnout levels in Texas' first-in-the-nation 2018 primary elections, giving Republicans a potential glimpse of what's ahead in the first midterms under President Donald Trump.

Energized and angry Democrats in Texas, where the GOP has dominated for decades, came out in force to surpass 1 million voters Tuesday and eclipse midterm primary participation totals unseen since 1994, when the party was in full slide toward wilderness after long being the top political dog.

Equally striking was the showing b...