Johnson said there is "no case for relaxation."
U.K. prime minister needs the support of her entire party to approve her strategy without change.
Polling shows voters have strict conditions for what life after Brexit should look like.
Labour's Emily Thornberry said Britain needs 'a Prime Minister who is prepared to tell [Trump] to stop.'
"Twenty million people have died because of nationalism in Europe," Guy Verhofstadt said.
While Trump said he wanted to have good relations with Russia, May said sanctions must stay in place.
A new poll shows which world events Russians recall best from the past year.
Theresa May and Donald Trump certainly have an incentive to announce a quick deal, but it might not make economic sense.
The "clock" is now at two and a half minutes to midnight, 30 seconds closer than in 2016.
The report cited the collapse of trust in American public institutions as a reason for the change.
Government departments tasked with handling the country's post-EU future have faced deep cuts.
Trump might use the meeting to go some way to winning concessions from Britain and bolster his vision of the United States exporting its way to prosperity.
Polls failed to predict Brexit or Donald Trump, but online comments are full of the emotions that matter.
The government could introduce legislation to enable them to trigger article 50 as early as Thursday.
The Supreme Court ruled that Edinburgh's devolved assembly did not need to be consulted on triggering Brexit.
Damage to research threatens the U.K's industrial base and the reputation of its universities.
Critics of the traditionally laissez faire attitude call for a more active role for government and the population in creating a cohesive society.
However, the government does not need the permission of devolved governments in Scotland, Wales and Northern Ireland.
If the U.K's industrial strategy is timid, Brexit will end up being a soft one.
A Conservative government intervening in the state is less surprising than it seems given the U.K.'s huge industrial discrepancies.
Labour's Jeremy Corbyn warns the prime minister to be careful, as 'there were no signs of any special relationship in (Trump's) inauguration speech.'
European integration was an outcome of America's rebuilding of Europe after World War II.
Advance your political vocabulary with words like plutogogue and snollygoster.