Housing woes push into 2020 White House campaign

Like many, Mario Wolthers was lured to Las Vegas a decade ago from California by cheaper housing costs. But when his apartment managers tried to raise his rent last spring, he moved in with a roommate.
“I’m a responsible taxpaying citizen,” said Wolthers, a 38-year-old elementary school teacher and Democrat. “I help a lot of kids out. I should at least be able to rent an apartment on my own or even afford a home.”
As the Democratic presidential candidates hustle for