Live Blog: Clinton and Sanders Battle for Two States as Bad Blood Grows

6:10 p.m. ET: Hillary Clinton and Bernie Sanders are facing off in Democratic primaries once again on Tuesday, as the race gets more contentious than ever.

The Kentucky and Oregon primaries come as Sanders comes under fire for his supporters' behavior at a chaotic state convention in Nevada on Saturday. The Nevada Democratic Party​ filed a formal complaint against the Sanders campaign for inciting violence after supporters vandalized property and booed officials. The supporters were angry about a rejected rule change that would have allowed more of Sanders' delegates to participate.

The growing bad blood between the candidates comes as Sanders loses his last few chances at the Democratic nomination. However, he has maintained that he will continue to try to swing super delegates ahead of the Democratic convention this summer. In the races today, Clinton is slightly favored in Kentucky, where 55 delegates are at stake. The Clinton campaign has said they expect to lose to Sanders in Oregon, where 61 delegates are at stake.

7:10 p.m. ET: The polls have closed in Kentucky and early results show Clinton and Sanders are locked in a tight race. With 14 percent of the polls reporting, Sanders is beating Clinton at 46.9 percent to her 46 percent. For Clinton, who recently lost neighboring state West Virginia, a win would bring her one step closer to cinching her nearly inevitable nomination and allow her to focus on general election campaigning. 

8:00 p.m. ET: Speaking to Wolf Blitzer on CNN, Sanders campaign manager Jeff Weaver reacted to the chaos at the Nevada convention and responded to Sanders supporters sending death threats to Democratic officials there. He refused to apologize for the violence, saying the supporters were responding to an "unfair spectacle" in Nevada, but added "we don't condone any violence or threats." 

8:40 p.m. ET: Republican candidate Donald Trump has weighed in on tonight's Democratic primaries, saying if Clinton does not win Kentucky she should drop out. Trump is expected to win by a landslide in Oregon, where the polls close in two hours. 

Do you think Crooked Hillary will finally close the deal? If she can't win Kentucky, she should drop out of race. System rigged!

— Donald J. Trump (@realDonaldTrump) May 17, 2016

10:25 p.m. ET: With 99.8 percent of the vote counted, Kentucky Secretary of State Alison Lundergan Grimes declared Clinton the unofficial winner of the state's Democratic primary. At last count, Clinton had 46.7 percent to Sanders' 46.3 percent. There are 55 delegates at stake in the super-close race. Polls close in Oregon in 25 minutes.

10:50 p.m. ET: Clinton declared victory in Kentucky, thanking her supporters for their votes and saying, "We're always stronger united." Under Kentucky law, Sanders could request a recount of the extremely close race, but he announced that he will not. 

11:39 p.m. ET: Sanders was declared the winner in Oregon with 53 percent of the vote. Giving a speech in front of a California rally, he doubled down on his plan to defeat Clinton and criticized the Democratic party leadership, saying "open the doors and let the people in."

Bernie basically gave the same speech the night of his N.H. primary win. He's back to belittling Clinton's chances against Trump. Unity?

— Patrick Healy (@patrickhealynyt) May 18, 2016

Clinton was declared the official winner in Kentucky at 11:40 p.m.