Washington (AP) - Despite great tensions between Washington and Ankara, US President Trump has almost exuberantly praised his Turkish counterpart Erdogan while visiting Washington. "I'm a big fan of the president," said Trump at a joint White House press conference. "We have a great relationship." That applies both to their personal relationship and to the relationship between the two countries. For their dispute over the Turkish purchase of a Russian missile defense system type S-400 both sides found no solution.