UnitedHealth has sought meetings with President Trump, although it has not secured one yet, the Wall Street Journal reported on Sunday.The attempts are part of a bolstered lobbying effort in Washington, DC, by the top U.S. health insurer at a time it faces numerous regulatory challenges, the paper reported.UnitedHealth has been grappling with high costs and federal investigations, including a criminal one into its Medicare billing practices, which have pushed its share price down around 30% this year. Steph ...