The Selinger government may be hoping it will win over Manitobans upset over the PST increase, by promising that every cent of extra revenue the hike generates will go into 'core infrastructure.'

Political analyst Christopher Adams, who is a former pollster and now rector of St. Paul's College at the University of Manitoba, said that's probably behind the pledge in Tuesday's speech from the throne.

Adams said the government has its work cut out for it.

"I think they underestimated the anger of the PST," Adams said.

Winnipegger Lars Andersson, shopping at Polo Park, said he never bought the government's justification in the first place, when it announced in the spring it was raising the provincial sale tax.

CHRIS ADAMS throne pst

Political analyst Christopher Adams said he thinks the government has underestimated Manitobans' anger over the PST increase. (CBC)

"I thought it was more government mismanagement. That was my first instinct," Andersson said.

After Tuesday's promise, he is still not convinced all the extra revenue will go into roads, bridges, and flood protection.

"That's all within the government range of doing things, so, nothing has really changed," he said.

Adams said the throne speech has details that were missing back in the spring. He thinks the government now realizes it stumbled back then. 

"We did hear the word in the media scrum, of schools, hospitals, and things like that, and I think part of that was a communications fumble."

Adams said it's unclear whether the commitment to invest the increase in infrastructure will pay off at the polls.

"They can say look at the port in Churchill, look at the overpass in Brandon, look at the Jubilee/Pembina Highway work that's being done. And I'm not sure it will work, but they hope Manitoba voters will be convinced by that."

The next election slated to be in the fall of 2015.