USA Today has a big piece on Trump not paying bills:
…the consistent circumstances laid out in those lawsuits and other non-payment claims raise questions about Trump’s judgment as a businessman, and as a potential commander in chief. The number of companies and others alleging he hasn’t paid suggests that either his companies have a poor track record hiring workers and assessing contractors, or that Trump businesses renege on contracts, refuse to pay, or consistently attempt to change payment terms after work is complete as is alleged in dozens of court cases.