Green politicians from across Europe on Friday called on U.S. Green Party presidential candidate Jill Stein to withdraw from the race for the White House and endorse Democrat Kamala Harris instead.“We are clear that Kamala Harris is the only candidate who can block Donald Trump and his anti-democratic, authoritarian policies from the White House,” Green parties from countries including Germany, France, Denmark, Italy, the Netherlands, Ireland, Estonia, Belgium, Spain, Poland and Ukraine said in a statement, which was shared with POLITICO ahead of publication.