Every day, he's forced to endure questions from reporters about his chief of staff, Ray Novak. Journalists pepper Harper with demands about whether Novak knew in advance of former chief of staff Nigel Wright's $90,000 payment to Duffy, a Conservative bagman facing 31 criminal charges.
Yesterday, one of those reporters, CTV's Laurie Graham, was booed by Harper's supporters at a campaign rally.
It's only a matter of time before Statistics Canada will officially announce that Canada is in a recession. That will result in another round of recrimination for the Conservatives.
It has some casting their eyes on a post-Harper era in Canadian politics after nearly 10 years of Conservative rule.
Adding to this sentiment is the fact that two recent prime ministers, Jean Chrétien and Brian Mulroney, left the scene around the 10-year mark.
However, Harper has an advantage over them. His Conservative party has developed the most sophisticated voter-identification system in Canadian politics.
Toronto Star journalist Susan Delacourt chronicled how it was developed in her 2013 book, Shopping for Votes: How Politicians Choose Us and We Choose Them.
She revealed how the Conservatives created an extensive database on the Canadian electorate.
"Former Conservative MP Garth Turner had said he was expected to log information about his constituents into the party database," Delacourt reported. "Yet another Conservative, Michael Sona, the staffer accused of involvement in the robocalls controversy of the 2011 election, also publicly acknowledged that it was part of his job in MPs' offices to put citizen information into CIMS [Constituent Information Management System]."
In Shopping for Votes, Delacourt noted how then-immigration minister Jason Kenney sent a mass email to members of Canada's gay and lesbian community. Their addresses had been culled from a petition sent to his office.
"Hard questions need to be asked, it seems, about how government information turns into political data," Delacourt wrote in her book.
Anyone who reads Shopping for Votes will conclude that the Conservatives have compiled reams of information about the electorate through data mining. This enables Conservative campaign workers to pinpoint specific messages at voters about what interests them in ways that Chrétien and Mulroney could never have imagined.
This is why it's still too early to talk of a post-Harper era, no matter how badly the Conservative leader appears to be faring on nightly newscasts.