US President Biden says he believes next month's US presidential election will be fair, but Republican candidate Trump and his running mate may reject the results。Biden said: "I am confident that the election will be free and fair.。But he also said: "I don't know if the election process will be peaceful.。And look at what Trump has said, and his remarks about his displeasure with the results of the last election, it's very dangerous。Biden also noted that Trump's running mate, Senator Vance, did not confirm that he would accept the results of the presidential election in this week's vice presidential debate.。