Fears US president could declare national emergency to secure funding for border wall

Any attempt by Trump to fire Fed chief could have devastating effects across markets

With Mick Mulvaney named as chief of staff, record level of personnel change continues

Trump appointee Ryan Zinke criticised for efforts to expand oil and gas drilling

US interior secretary said it was the worst fire devastation he had ever seen

Maureen Dowd: Everything is plausible in Trumpworld

Trump administration spokeswoman says plan has not been finalised amid backlash

Weekenders cannot take countryside for granted as Trump moves to redesignate sites

Successful candidate Greg Gianforte apologises for his actions to reporter Ben Jacob

Video

Political journalist allegedly thrown to the floor by Greg Gianforte

Contests viewed as bellwether of public attitudes to Trump ahead of 2018 midterms

America Letter: Special election to fill conresssional district seat in Georgia had been regarded as a shoo-in for the Republicans

President fulfils promise to work for free but National Park Service likely to lose funding