The Commons Speaker has refused a government request to hold a "yes" or "no" vote on its Brexit deal.
John Bercow said a motion on the deal had already been brought before MPs on Saturday, and it would be "repetitive and disorderly" to debate it again.
Saturday's sitting saw an amended motion nodded through by MPs, which withholds approval of Boris Johnson's deal until it has been passed into law.
The PM agreed a deal with the EU last week, but it must be approved by MPs.
President Donald Trump scored his first big legislative victory on Thursday as the House of Representatives voted to replace Obamacare, in an important step towards achieving one of the Republican party’s top goals since Barack Obama passed his signature healthcare measure seven years ago.
House lawmakers voted 217-213 to pass the Republican healthcare measure. While the bill now moves to the GOP-controlled Senate where it faces obstacles, the vote is a victory for Mr Trump who had ended his first 100 days in office with no big legislation.
Results from today’s Tobago House of Assembly (THA) elections should start coming in to returning officers from around 7.30 pm.
This estimate was given yesterday by Elections and Boundaries Commission (EBC) chief elections officer Ramesh Nanan, who is in Tobago.
“All systems are in place for today’s THA poll,” he said.
Polling takes place from 6 am to 6 pm at stations in the 12 THA seats. Some 50,227 citizens are eligible to vote.
Leader of the Tobago Forwards, one of three political parties contesting Monday's Tobago House of Assembly (THA) elections, is claiming that vast amounts of marijuana are being offered to voters to vote for the People's National Movement.
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The allegation came after she claimed that money and food cards are also being distributed.
Election campaigns are often riddled with allegations of parties attempting to buy voters, most of which are not backed by any hard evidence.