The leader will be announced at the party conference in Torquay, which, according to reports, Nigel Farage will not be attending.
Mr Bolton is seen as being on the moderate wing of the party in a campaign which was dominated by the presence of Anne Marie Waters, director of Sharia Watch UK and anti-Islam candidate.
Mr Bolton will address the party conference at about teatime on Saturday.
It is thought if Ms Waters wins the leadership contest it could create a huge divide in the party.
He promised to pressure the government into a hard Brexit.
"We can't lead the nation and we can't hold the government to account and we can't achieve our core objective at all", he said.
"The other thing is, I do not believe for a moment that we should be pushing this out and allowing the negotiations to be endless before we leave".
Bolton, a former soldier and Thames Valley police officer, later worked for organisations such as the United Nations and Organisation for Security and Co-operation in Europe in Kosovo and other countries.
PAHenry Bolton at the Ukip annual party conference
Asked if he would "ban the burka", Mr Bolton said: "I don't think it's about banning the burka, is it?" BBC political correspondent Ben Wright said Mr Bolton would be seen as the continuity candidate.
Nigel Farage has got a bit of a reputation for pulling amusing faces. None of us is Nigel. There is a danger, he said, that UKIP would go from being perceived as a single-issue "anti-Brussels party" to a single-issue "anti-Muslim" one.
The ex-soldier, who saw off a challenge from anti-Islam campaigner Anne Marie Waters, won with 30% of the vote.
"I had expected to win", he said, while carrying what appeared to be a copy of an unused victory speech containing the headline "New World Order".
UKIP's support evaporated in the election in June, losing its only member of parliament who had already abandoned the party, and taking just 594,068 votes, only 1.8 per cent of the total cast.
Reconciliation is a disaster but as you know it ends on Friday. "The slogan doesn't cut it for me anymore", O'Brien said. Trump also said he would work with Democrats to improve the healthcare system, according to a Politico report .
Univision has 35 people on the ground and a remote FlyAway studio for transmission, a network spokesperson said. Diesel fuel, which is desperately needed to run generators for emergency services such as hospitals, is scarce.
Marlene suffered a gunshot wound to the face and was taken to Palm West Hospital where she died two days later. The getaway vehicle , a white Chrysler LeBaron convertible, was also a key part of the initial investigation.
Outside of the hall where the event was held, roughly 100 students and faculty members protested Sessions' presence on campus. But the freedom of every individual player is paramount under the Constitution, it's protected, and we have to protect it.
Meghan looked effortlessly flawless in ripped blue jeans and a white shirt, shielding her eyes with a pair of dark glasses. In fact, Meghan looked like she was seated about four rows away from Harry at the Air Canada Centre on Saturday night.
The new NBC show , which premiered on Monday, September 25, sparked yet another controversy during its Thursday episode. Viewers will be treated to Jane Fonda romancing Robert Redford in an original Netflix movie called Our Souls at Night .
Travellers around the world are facing major delays at airports after computer check-in systems crashed. Passengers are seen waiting to check in for flights at London's Heathrow airport in this file pic.
One said refunds to those concerned about the anthem protests were only offered to subscribers with certain offers or plans. Trump said players who kneel or sit are "disrespecting the flag", called them "sons of b--" and said they should be fired.
According to this report, Otto Warmbier presented some minor signs on his body, but nothing that indicated a torture. Warmbier was released in June after 17 months in North Korean custody and died in a USA hospital a few days later.
Najar, 39, who had been an active part of terror operations since 1999, was killed near Zorawar Post of Lachiproa in Uri. The list was rejected by Hizbul Mujahideen leader Syed Salahuddin, which caused friction between the two commanders.
PM Abe celebrates anniversary of Japan-China ties
A separate poll by the Asahi newspaper showed Party of Hope notching 13 percent and the LDP hitting 32 percent. The Party of Hope has energised some voters, and is gaining renegade lawmakers from the main opposition party.
Sri Lanka bat first against Pakistan as Haris Sohail debuts
They are yet to lose at this ground and the last time Pakistan and Sri Lanka met in Abu Dhabi, the Test ended in a draw. On the other hand, Sri Lanka will be looking to bounce back from a 3-0 Test series whitewash at the hands of India.
Trump On Firing Tom Price: 'We'll See'
Trump's remarks were the latest example of the White House distancing itself from Price's actions. Trey Gowdy, R-S.C., chair of the House Committee on Oversight and Government Reform, and Rep.
CSKA Moscow vs Manchester United live streaming free
Last year, fans were accusing United boss José Mourinho of parking-the-bus in every game after scoring one or two goals. Jose Mourinho has assembled a powerful, star-studded squad that poses a threat from many areas of the pitch.
Amazon's Echo Plus packs in a smart home hub
Amazon introduced a bevy of new Echo devices today, but there's also a new product for folks looking for a new set-top box. Are you going to buy this new Amazon Fire TV? Alexa is now available by updating the Amazon Music app for iOS or Android.
Interpol approves Palestinian membership; new blow to Israel
However, five years ago the United Nations General Assembly upgraded the status of the Palestinians to "non-member state". In Jerusalem, Israeli Prime Minister Benjamin Netanyahu said the decision "seriously harms the chances to achieve peace".