Six years ago, a monster tornado killed 24 people in Oklahoma. On Monday, forecasters are warning people in Oklahoma and Texas about a series of tornadoes hit the region. David Begnaud reports. Source

Top Democrats are reacting to the White House’s decision to tell former counsel Don McGahn to defy a congressional subpoena. The Hill’s Julia Manchester joins CBSN’s Elaine Quijano to discuss the response from top lawmakers and the rest of Monday’s top political headlines. Source

A federal district judge ruled to uphold a subpoena for President Trump’s financial records. CBS News political correspondent Ed O’Keefe explains the President’s reaction to the ruling, as well as his stance on restrictive anti-abortion legislation passed in several states. Source

Democratic presidential hopeful Joe Biden has officially surged past President Trump when it comes to online ad spending, with $1.5 million on Google and Facebook ads since the beginning of the year. Axios media reporter Sara Fischer joins CBSN to explain the significance. Source

Parents of kids who play sports are sometimes delaying their retirements, hoping investment in athletics will pay off in the long run. Source

President Trump suggested Alabama’s near-total ban on abortion is too restrictive, as White House officials warn similar laws could energize Democratic voters ahead of the 2020 election. CBS News legal analyst Kim Wehle joined CBSN to break down what’s next in the national fight over abortion rights. Source

War of Will bounced back from a bumpy ride in the Kentucky Derby to win the Preakness Stakes, holding off a field that included a riderless horse that threw his jockey out of the gate and still finished the race. Trainer Mark Casse got his first Triple Crown victory, with War of Will unbothered starting from the inside No. 1 post position for the second consecutive race. Source

2020 presidential candidate Pete Buttigieg joined Fox News for a town hall, while other Democratic candidates have refused. Meanwhile, GOP Rep. Justin Amash broke with his party on the issue of impeachment. CBS News political correspondent Ed O’Keefe joined CBSN AM to discuss the latest developments. Source

“CBS This Morning” co-hosts Gayle King, Anthony Mason and Tony Dokoupil reflect on a new chapter for the morning broadcast ahead of the launch on Monday, May 20. Source

Families complained of housing issues such as mold, vermin and water quality concerns at more than 160 military installations across the country Source