Tuesday, Wednesday and Saturday are the dates to know this week.They involve primaries being affected by the pandemic, a U.S. Senate inquiry and a monumental moment in World War II. Here’s what to expect.1. Rescheduled, adjusted primaries taking place TuesdayIndiana’s comes after a delay from May 5 and elections for Pennsylvania and Rhode Island will take place after postponing their April 28 dates.Montana kept its primary date but counties switched to a mail-in measure.New Jersey was slated to hold its primary Tuesday but has postponed it to July 7.DC, New Mexico, South Dakota will hold their primaries as scheduled Tuesday.2. Rosenstein to testify WednesdayFormer Deputy Attorney General Rod Rosenstein will appear at a hearing for the Senate Judiciary Committee about the FBI’s counterintelligence investigation into President Donald Trump’s 2016 campaignThe Senate Judiciary Committee is opening a wide-ranging inquiry into the Russia investigation, including whether Robert Mueller should have been appointed as special counsel in the Russia probe. Rosenstein decided to appoint Mueller.Rosenstein, along with other top Justice Department officials, had also signed a series of warrants as it sought to investigate Carter Page, a onetime foreign policy adviser to the 2016 Trump campaign. But Page was never charged with any crimes during the three-year Russia investigation.Later, an internal review by the Justice Department’s inspector general, Michael Horowitz, found the FBI had properly opened its investigation into Russian election interference and potential collusion by the Trump campaign, but it noted that there were major errors in how the agency had conducted the probe. Rosenstein is expected to testify about the Horowitz report and other matters.3. D-Day anniversary is SaturdayDuring World War II, Allied forces stormed the beaches of Normandy, France on June 6, 1944. The invasion, known as “D-Day,” began the liberation of German-occupied Western Europe.The operation took years of planning, and Allied forces knew a massive invasion of mainland Europe was critical for surrender of Nazi Germany.More than 150,000 Allied soldiers arrived on the beaches of Normandy, France for the largest seaborne invasion in world history. D-Day helped lay the foundation for an Allied victory on the Western Front. It was a major tactical victory against the Nazis in Europe during World War II, and it is remembered as one of the most courageous operations in the history of international warfare.The Associated Press and CNN contributed to this report.