By LISA MASCARO, ERIC TUCKER and ZEKE MILLERWASHINGTON (AP) — President Donald Trump said Wednesday he's open to new witnesses at his impeachment trial, a major demand by Democratic prosecutors, but he immediately backtracked, suggesting it could never happen despite what he said was his willingness.Separately, Trump's lawyers let a deadline pass without filing a motion to outright dismiss the articles of impeachment, ensuring that the trial will continue.Trump, who was in Davos, Switzerland, for an economic conference, seemed at one point to break with Republican opposition to Democratic motions to immediately call witnesses and subpoena documents.Read more on NewsOK.com