Trump disses the mayor of San Juan

Yahoo has an article by Colin Campbell about Trump's latest rant:

President Trump (photo) lashed out on Twitter at Carmen Yulín Cruz, the mayor of San Juan on Saturday morning over what he implied was insufficient gratitude for Federal help in the wake of Hurricane Maria.
“The mayor of San Juan, who was very complimentary only a few days ago, has now been told by the Democrats that she must be nasty to Trump,” the commander-in-chief wrote. “Such poor leadership ability by the Mayor of San Juan, and others in Puerto Rico, who are not able to get their workers to help.”
It’s not clear what, exactly, caused Trump to lash out against Cruz, who has issued increasingly desperate pleas for help as her island of 3.4 million people struggles to obtain clean water, fuel, electricity, and other basic supplies.
Cruz has criticized the federal relief effort generally. “We are dying, and you are killing us with the inefficiency,” Cruz said at a news conference on Friday. “I am begging, begging anyone that can hear us, to save us from dying.”
Trump has repeatedly touted the response effort, suggesting that Puerto Rico’s poor infrastructure and “massive debt” is to blame for the territory’s ongoing crisis. The Oresident also frequently points out that Puerto Rico is an island, which complicates recovery efforts. “This is an island surrounded by water, big water, ocean water,” he said Friday.

Rico says that, speaking of all that water, he's surprised no one's shipped in a big desalinization plant like Tampa's and solved the problem...