Flooding still a big concern in the lower Missouri River area after a massive storm affects parts of Nebraska, South Dakota, Iowa and Minnesota.
State and local governments stand to gain up to $13 billion annually by collecting taxes from remote sellers; some Republican governors and lawmakers propose to give it away in the form of tax cuts.
Republicans will get a shot at the governor's mansion in November's election, while Democrats avoid being shut out of House races in the state's "top two" open primary. Nationally, female candidates make gains.
The California Democratic Party, which temporarily lost its supermajority in the state Senate in February when a lawmaker accused of sexual misconduct resigned, loses another seat.
A mid-April storm stretching from the Gulf Coast to the Great Lakes dumps two feet of snow on parts of the Upper Midwest before plowing toward the Northeast and Mid-Atlantic states.
The Keystone spill in South Dakota and approval for the Keystone XL in Nebraska have galvanized indigenous people and their allies.
Nebraska regulators are not allowed to consider pipeline safety in deciding whether to expand the project.
Some of the worst fears and dire predictions of opponents of the project may be coming true.
The U.S. government has a long history of breaking promises and dishonoring contracts with Native Americans and other marginalized groups. Hopefully, the next president will change this shameful truth.