Joe Biden is on his way to Buffalo, New York to meet the families of victims of Saturday's racist attack at a grocery store that claimed 10 lives.
The president has called for mass shooting by an alleged white supremacist terrorism motivated by a hateful and perverse ideology. He and First Lady Jill Biden will meet victims families, local officials and first responders this morning, and will deliver remarks at lunchtime.
In Congress, Democrats are trying to pass the domestic terrorism prevention act in the wake of the Buffalo shooting and other recent hate crimes. The justice department would have more tools to tackle white supremacy in particular.
It is a primary day in several states, and Donald Trump's grip on the Republican party will be tested in several key races, notably in Pennsylvania. His choice for Senate nominee, TV doctor Mehmet Oz, faces a stiff challenge from an even more extremist candidate, Kathy Barnette, and a mainstream candidate, David McCormick.
Voters in Idaho, Kentucky, Oregon and North Carolina are also in the polls, and my colleague Lauren Gambino will have coverage of the day's events later this evening.
Homeland security secretary Alejandro Mayorkas will visit the US-Mexico border in Texas, amid uncertainty over the Biden administration s efforts to end the Trump-era Title 42 policy that blocked refugees because of Covid- 19.
Greek prime minister Kyriakos Mitsotakis will address a joint meeting of Congress, with Vice-President Kamala Harris in attendance.
The House intelligence subcommittee will hold a public hearing this morning to investigate UFOs, or more accurately, unexplained aerial sightings by the US military. Two Pentagon officials will give testimony.