From The Hill by Jordain Carney and Mike Lillis

For Republicans hoping to run out the clock on gun reform, the weekend’s mass shooting in Texas has complicated the math.

The killings of seven people in Odessa by a lone gunman on Saturday has rekindled the push for stricter gun laws, rousing Democrats and outside reform advocates already energized by the summer’s tragedies.

Walmart, one of the world’s largest retailers, announced Tuesday that it would limit its ammunition sales and request customers not openly carry firearms — a move immediately condemned by the National Rifle Association (NRA) as “shameful.”

Democrats have seized on the latest news to renew their calls for action, putting new pressure on the GOP.

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