GOP warning signs in California

Mimi Walters in a purple plaid jacket standing in front of two American flags
Rep. Mimi Walters is hopeful about Republicans keeping their California House seats. Photo: Bill Clark/CQ Roll Call

California Republicans like Rep. Mimi Walters are feeling more hopeful about holding onto their seats come November, reports Politico's Rachel Bade. They're banking on President Trump's rising approval rating (42% across the U.S.) and their work to repeal the state's gas tax.

Yes, but: A closer look at California's politics by party affiliation show potential signs of trouble for the GOP.