President Trump on Thursday encouraged Ukraine and China to investigate former Vice President Joe Biden and his son amid growing concerns over how Trump has used his position to pressure foreign governments to look into his political rivals. “I would think that if they were honest about it they’d start a major investigation into the Bidens,” Trump told reporters at the White House when asked what he wanted Ukrainian President Volodymyr Zelensky to do about the Bidens following the July 25 call between the two leaders. The call triggered an intelligence community whistleblower complaint and is at the heart of...