More voters say they are "unsure" about who the most trustworthy political leader is, according to the latest election poll.

The poll, conducted by Nanos Research this past weekend on behalf of CP24, CTV and the Globe and Mail, found 24.1 per cent of the survey's 507 respondents were unsure of which provincial party leader could be trusted the most.

That number is significantly different than the results of another poll that was released this summer. In a Nanos survey released in August, 14.1 per cent of respondents claimed they couldn't decide who deserved the title of most trustworthy.

In today's poll, respondents who could decide chose Liberal Leader Dalton McGuinty with 22.6 per cent of the vote. Progressive Conservative Leader Tim Hudak came in a close second with 19.3 per cent support.

However, the poll's margin of error puts the two leaders in a statistical dead heat.

The poll's margin of error is listed as 4.4 percentage points, plus or minus, 19 times out of 20.

NDP Leader Andrea Horwath and Green Party Leader Mike Schreiner trailed far behind with 11.1 per cent and 3.2 per cent respectively.

Voters seemed just as uncertain about which political candidate had the best vision for the province.

Nearly 27 per cent (26.8) of respondents said they are unsure of which leader's vision was best suited for Ontario.

That's up 10 points from August when only 16.8 per cent of respondents said they couldn't decide.

However, McGuinty continued to edge out Hudak among those who could decide.

Hudak received 19.5 support whereas McGuinty got 25.5 per cent of the vote. Again, Horwath and Schreiner trailed behind with 12.6 per cent and 2.9 per cent respectively.

The margin of error stayed the same, plus or minus 4.4 percentage points, 19 times out of 20.

Race too close to call

This latest Nanos poll also indicates that the race for premier appears to be too close to call.

More than 400 Ontarians (415) who identified themselves as decided voters were asked which party they would consider voting for in the provincial election. The results show 38.1 per cent of them support the Liberal Party whereas 34.7 per cent said they would vote for the Progressive Conservatives.

Support for the NDP was counted at 24.3 per cent and 2.7 per cent for the Green Party.

This poll lists its margin of error as plus or minus 4.9 per cent, 19 times out of 20.

The survey demonstrates the Liberals have managed to gain slightly more support from voters than earlier this month.

A Nanos poll released on Sept. 5 showed the Tories slightly leading the race with 35.4 per cent, followed by the Liberals with 31.9 per cent and the NDP at 22.8 per cent. The Green party finished fourth with 4.1 per cent.

Though it appears the Liberals have now edged the PCs, the margin of error puts the parties in a statistical tie.