With less than two weeks to go to , the latest polling shows the Conservative Party's lead over Labour has dropped slightly.
The Tories have experienced a drop of one point to 46 per cent, while Labour has gained three points to 31 per cent, according to a survey of 2,000 adults by Opinium Research.
The Liberal Democrats are up one point to 13 per cent, while the Brexit Party is down one point to 2 per cent.
The Opinium poll found as many as one in seven voters (16 per cent) was not sure who to vote for.
A third of "don't knows" didn't expect to make up their mind until the day of the election itself, with 13 per cent saying they're likely to only make up their mind at the polling booth.
The poll found the Leave vote continues to coalesce behind the Tories, with the party holding 76 per cent of the Leave vote share, up one point from last week
British Prime Minister Boris Johnson on the campaign trail last week. Source: AAP
However, the Remain vote still shows no sign of decisively uniting behind one party, with the Liberal Democrats holding onto a quarter (25 per cent) of the Remain vote.
The poll found little has changed in the past week on perceptions of who would make the best prime minister.
Mr Johnson is up one point to 36 per cent, while Jeremy Corbyn remains at 19 per cent.
Priya Minhas, research manager at Opinium, said: "While Brexit is still the key issue... this has dropped in importance since the start of the campaign, with the NHS and health becoming more prominent as a deciding factor.
Boris Johnson and Jeremy Corbyn shaking hands during a head-to-head debate last month. Source: ITV
"This favours Labour as they are trusted more on this issue."
