Vince Cable has been declared Leader of the Liberal Democrats with the backing of every one of the party's MPs, succeeding Tim Farron.
Vince was nominated by all his parliamentary colleagues and the requisite number of members across the country.
He is to embark on a UK-wide tour having been declared Leader (Thursday) at an event in central London.
He was congratulated by out-going Leader Tim Farron and welcomed on the stage by Deputy Leader Jo Swinson.
New Leader of the Liberal Democrats and former Business Secretary Vince Cable said:
"There is a huge gap in the centre of British politics and I intend to fill it. As the only party committed to staying in the single market and customs union, the Liberal Democrats are alone in fighting to protect our economy. It will soon become clear that the government can't deliver the painless Brexit it promised. So, we need to prepare for an exit from Brexit.
"Theresa May wants to take Britain back to the 1950s while Jeremy Corbyn wants to take Britain back to the 1970s. I will offer an optimistic, alternative agenda to power the country into the 2020s and beyond.
"We have a government that can't govern and an opposition that can't oppose. Labour and the Conservatives have formed a grand coalition of chaos, driving through a hard Brexit which would deliver a massive blow to living standards.
"Both parties have abandoned mainstream economics. I want to put economics back centre stage.
"Under my leadership the Liberal Democrats will be at the centre of political life: a credible, effective party of national government.
"We have doubled our membership and our new members have given the party enormous energy. I want to give leadership to that energy, hitting the headlines and putting our party at the centre of the national debate."