Work and Pensions Secretary Stephen Crabb has entered the race to succeed David Cameron as Conservative Party leader.
The politician, who assumed his current post after Iain Duncan Smith's dramatic resignation earlier this year, said he would run to replace Mr Cameron with Business Secretary Sajid Javid as his number two.
The pair, who both campaigned for the UK to remain in the EU, have teamed up in what they dubbed a "blue collar ticket" to take on favourites Boris Johnson and Theresa May. They are set to formally announce their bid on Wednesday morning.
Mr Cameron announced he would quit as Prime Minister in the coming months after voters unexpectedly voted for Brexit in the EU referendum last Thursday.
He suggested he would step down by October ahead of the Conservative Party conference.
Mr Crabb's announcement comes after Chancellor George Osborne, who is known to be close with Mr Javid, ruled himself out of the leadership race.
He said that “he fought hard” during the EU referendum campaign but that it had left him a divisive figure.
