A Conservative Party source said it was time for the government to get on with its business.
It was thought to have been postponed in order for measures agreed with the DUP to be included.
It is not yet clear whether European Union withdrawal talks, which had been due to start on Monday, will also now go ahead on Wednesday, although Brexit Secretary David Davis has said they will start "next week".
"And if that wasn't enough, calling an unnecessary general election purely for the self interest of the Conservative Party and having mucked that campaign up they are now putting the country in hock to the DUP".
It has positioned itself against republican parties like Sinn Fein, which believes that Northern Ireland should be a part of the Republic of Ireland, bringing the whole island under a single government.
The party said it would oppose any deal between Theresa May and the Democratic Unionist Party in Northern Ireland that undermines the 1997 peace deal.
During the appearance, Ms O'Neill said: 'We made very clear to the prime minister that any deal between herself and the DUP can not undermine the Good Friday agreement.
Edmonton's Connor McDavid wins first Hart Trophy as NHL MVP
Matthews led all first-year players this season and tied for second in the league with 40 goals, including four in his NHL debut. At 38, the veteran may have played his last NHL game in a career that many believe will land him in the Hockey Hall of Fame.
White House paints Handel win as Trump triumph
In the age of Trump, big ideas are over-rated, but it seems clear that it takes more to win than simply being anti-Trump. Moreover, the race garnered the attention of the entire nation, including the likes of President Donald Trump .
Gerry Adams led a delegation to Government Buildings including Ms O'Neill, Sinn Fein deputy leader Mary Lou McDonald and newly-elected Fermanagh South Tyrone MP Michelle Gildernew.
"It can't be a deal that affects and infects the talks process", he said.
"We know each other and we understand each other", she said. Sinn Fein and others have argued that any deal in which the DUP formed part of a United Kingdom government would worsen the current situation.
With negotiations between the two parties ongoing, and a deal to form a minority government reportedly 95 per cent complete, an agreement is expected to be reached next week.
Ulster Unionist leader Robin Swann rejected the call for an independent talks chair to replace Secretary of State James Brokenshire.
Talks with the DUP broke up on Tuesday night without an agreement, but Mrs May said the discussions had been "productive".
He added: "If the DUP imagines it can wind back the clock, with a Tory side deal or not, and re-establish the institutions without adherence to equality and rights, then the DUP is indeed living in a fool´s paradise".
We've set out very clearly the fact that her government is in default of the Good Friday Agreement and successor agreements.
Qatar Airways firms up an order for 20 Boeing BA.N 737 MAX jets after letter of intent a year ago for up to 60 737 MAX 8 jets. Delivery to airlines like United Airlines , British Airways and launch customer Singapore Airlines will begin next year.
You may not agree with me, but we can probably agree that what is happening now is embarrassing, shameful and will do harm to us. Heller is up for re-election in 2018 and is considered one of the most vulnerable GOP senators.
The median sales price of new houses sold in May was $345,800, while the average sales price was $406,400. The supply of new houses available for sale was unchanged at 5.3 months' worth, the same as in April.
Unlike his elder statesman characters in " Westworld " and "Thor", Hopkins doesn't appear to just be doing this for a paycheck. If you understood any of that, congratulations, you are on the same wavelength as Michael Bay and his screenwriters.
The singer, who just gave birth to twins last week, is on the top of the board with seven nominations. Past winners include Lionel Richie, Smokey Robinson, James Brown, Gladys Knight, Prince among others.
After Smith was shot, the resulting violence during protests left businesses burned, police cars damaged and officers injured. According to Fox6, jurors also had the option to pick from two lesser charges instead of first-degree reckless homicide.
Vegas emerged from the expansion draft with 15 defensemen, and McPhee alluded before the expansion draft to trading some of them. The Oilers, Flames and Canadiens were among the more active teams in recent weeks.
Host Russia exits Confederations Cup after loss to Mexico
Akinfeev failed to clear a bouncing ball, allowing Lozano to sneak in and score the victor seven minutes into the second half. Mexico were soon back on terms, though, with Araujo looping his close-range header over Igor Akinfeev in the 30th minute.
Fabinho tempted by United
Fabinho has been speaking live on Brazilian television on Friday and the channel chose to do a Q+A session where fans sent in their questions for Fabinho to answer.
Malaysia knock India out of HWL Semi-Finals
The Netherlands were in impressive form as they followed Argentina and Malaysia into the semi-finals by thrashing China 7-0. A defeat on Saturday will definitely raise question marks over the team's and chief coach Oltmans' progress over the years.
Samsung set to showcase Galaxy Note 8 in NY in August
The tablet comes with company's S Pen for doodling, taking notes and other S Pen features like translate, magnify and navigation. This also means, though, that Samsung has failed to integrate fingerprint scanning capabilities right into the display .