The Growing Conflict: Police used pepper spray last night to disperse protesters outside a Donald Trump rally in Kansas City, Mo. Protesters had locked arms to confront approaching police officers on foot and on horses when they were sprayed.

Inside, Trump was confronted with protesters who popped up in ones and twos like whack-a-moles. They carried signs that said “Deport Racism” and “Who would Jesus deport?” Trump’s supporters chanted “USA!,USA!, USA!” and the candidate said, “We’re going to take our country back from these people.”

In recent days Trump has been accused of using rhetoric that has encouraged violence between his supporters and detractors. In the fray last night Trump accused many of the protesters of being sent by Bernie Sanders, “Bernie, our communist friend who’s running.”

The confrontations have become increasingly ugly. A protester who went up on stage before Friday night’s rally in Chicago was cancelled told NPR, “They were calling us the ‘n’ word, they told me to go back to Africa. I’ve never been to Africa.”

The Numbers Game: Struggling Marco Rubio won the Washington, DC primary yesterday while setting all his hopes on Tuesday’s vote in Florida. Ted Cruz won Wyoming with a resounding 66 percent.

Donald Trump now has 460 delegates and Cruz, 369. Florida has a winner-take-all 99 delegates.

It’s possible that the other Republican candidates may not join in unity to back Trump if he wins. Rubio said, “I still at this moment continue to intend to support the Republican nominee, but it’s getting harder every day.”

Carly Fiorina said in a television ad reinforcing her endorsement of Ted Cruz that, “I said the very week that Donald Trump announced his candidacy he does not represent me and he does not represent my party, and so we have to defeat him.”

World: The investigators who examined last year’s Germanwings air crash say the medical confidentiality of pilots must be loosened. The Germanwings jet was deliberately flown into a mountainside by a mentally ill co-pilot, killing 150 people. He had been advised to check into a psychiatric hospital and the airline didn’t know it.

>The NY Times reports that Islamic State fighters have begun to force birth control upon the ethnic minority women they have systematically raped. Under their understanding of Islamic law, they may no longer rape a woman after she has a baby.

Nation: President Obama is expected to name a Supreme Court nominee, possibly this week and maybe even as soon as tomorrow. Political theater will follow.

Frozen North: One Alaskan sled dog was killed and others injured in what appeared to be an intentional attack by a snowmobiler on teams in the annual Iditarod race. Two racers reported attacks and one of them, Jeff King, said his dog team was hit by the snowmobile. Police arrested the 26-year-old snowmobiler but there’s no word on the reason for the attacks.

What I Meant to Say Was: Hillary Clinton has had to back off her remarks to NBC News praising Nancy Reagan for her work fighting HIV/AIDS. “While the Reagans were strong advocates for stem cell research and finding a cure for Alzheimer’s disease, I misspoke about their record on H.I.V. and AIDS,” Mrs. Clinton said in a later statement.

Mrs. Reagan was buried yesterday next to her husband, the late president Ronald Reagan. The Reagans were notorious for ignoring the AIDS crisis in the 1980s until at least 40,000 Americans had died of the then mysterious disease. Mrs. Clinton said Nancy Reagan had spurred a national conversation about AIDS, but a comment in Gawker said, “The Reagans ‘started a national conversation about AIDS’ in the same sense that George W. Bush ‘started a national conversation’ about Iraq.’”

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