WASHINGTON (AP) — House Speaker Nancy Pelosi is asserting that Attorney General Robert Barr has committed a crime by lying to Congress. At a news conference Thursday, Pelosi ramped up pressure on Barr, who boycotted a House hearing but testified for several hours Wednesday to a Senate panel about special counsel Robert Mueller’s report. Democrats have seized on Barr’s testimony from last month in which he appeared unaware of concerns from Mueller’s team over the way he had characterized their work.