Republican presidential candidate Donald Trump said he is a "uniter," but the growing violence at his campaign events has led many to question whether Trump can unite his own party.
His supporters and opponents have fought in the last few days. Some people have been arrested.
At a Trump rally in North Carolina, one of his supporters punched a protestor who was being removed from the event. Another event planned for last Friday in Chicago was cancelled after a large group of protestors entered the building.
On Saturday, a protestor was stopped before he could reach Trump on the stage in Ohio. At rallies in Missouri, protestors repeatedly interrupted Trump's speech and were removed by security.
Republican and Democratic opponents said Trump is responsible for the clashes at these events.
Senator Ted Cruz of Texas is Trump's leading Republican opponent. Cruz said that Trump's campaign "encourages violence." And Ohio Governor John Kasich, another Republican candidate, added, "Donald Trump has created a toxic environment."
德克萨斯州参议员泰德·克鲁兹（Ted Cruz）是川普主要的共和党对手。克鲁兹表示，川普的竞选活动“鼓励暴力”。而另一位共和党候选人，俄亥俄州州长约翰·卡西奇（John Kasich）补充说，“川普已经造成了一种有毒的环境。”
Senator Marco Rubio of Florida is another Republican candidate. He criticized Trump for calling on his supporters to attack anti-Trump demonstrators. Speaking with CNN, Rubio compared Trump to a third-world dictator and said Trump's campaign "is really going to do damage to America."
Both Democratic candidates, Hillary Clinton and Bernie Sanders also criticized Trump for his words and actions. But Trump told CNN that people linked to the Sanders campaign caused the violence in Chicago Friday. Trump said he should be praised for cancelling the event. Sanders said some of his supporters had protested at the event. But he said his campaign did not organize the protests.
民主党两位候选人希拉里·克林顿（Hillary Clinton）和伯尼·桑德斯（Bernie Sanders）也对川普的言行提出了批评。但是川普对CNN表示，桑德斯竞选相关人员造成了上周五在芝加哥的暴力活动。川普表示，他取消这次活动应该得到赞扬。桑德斯表示，他的一些支持者在活动现场示威。但是他表示，他的竞选活动并未组织这场示威。
All of the Republican candidates have promised to support the person who wins the party's nomination at its convention in July. But in recent days both Rubio and Kasich have said they may not be able to do so if Trump is the nominee.
Although Trump has won many party caucuses and primaries, he does not have enough delegates to win the nomination yet. Some experts say party officials may act during the convention to try to stop Trump from gaining the nomination.