From that HuffPo article up the thread about an easy seat the Democrats will lose due to a court ruling:

Judge Anne Covey held that Ramirez did not meet the requirements for maintaining a domicile in the district. The court was presented with evidence of low water and energy usage for the apartment in which the candidate claimed to be living. Ramirez acknowledged that he spent multiple days of the week with his daughter at a suburban house and with his girlfriend at her home outside the district.

“I believe the court got it wrong,” Ramirez’s lawyer, Adam Bonin, told The Huffington Post.

“I can’t believe this,” said Ramirez, according to the Philadelphia Inquirer. “This is a political decision. This is not a legal decision.”

The case was initiated by the local Republican Party and joined by two Democrats, as necessary under state law.

Covey’s decision creates a real possibility that Democrats could lose a seat they should otherwise win easily. It comes amid a string of bad news for Pennsylvania Democrats. Not only did they lose ground in the state legislature in 2016 and fail to defeat U.S. Sen. Pat Toomey (R-Pa.), but a number of their elected officials have recently faced corruption convictions or allegations.