Twenty US states and Washington, DC, sued US President Donald Trump's administration on Wednesday, challenging new rules that they say weaken the federal Endangered Species Act. They said that the rules could allow development, mining and oil drilling in habitats of threatened wildlife.

Attorneys general from 20 states and Washington, DC, say the US government illegally rolled back landmark protections.

US states filed two lawsuits on Wednesday accusing President Donald Trump’s administration of illegally weakening the federal Endangered Species Act, a landmark law that has…