Bombing Syria, cutting taxes, and dumping Joe Hockey as Treasurer - the latest ideas coming out of this Government suggest Tony Abbott is desperately scrabbling for anything in the hope of escaping his dire situation, writes Paula Matthewson.

Of the many words that could describe Tony Abbott and his Government, "bumbling", "incoherent" and "embattled" readily spring to mind. Yet in recent days, the most apt description of all would have to be "desperate".

Like a cat struggling to avoid a bath, Tony Abbott has been scrabbling for purchase; desperately latching on to anything within reach in the hope of escaping his dire situation.

Abbott knows he's in for a beating at the Canning by-election in a few weeks. Voters are likely to accept Labor's invitation to send the PM a message, knowing there's no associated risk of throwing out the Government altogether.

With the vote said to be close at the commencement of the by-election campaign, and the Liberal candidate placed sixth on the ballot paper, there's a chance Labor may even win the seat. But whatever the magnitude of the final swing against the Government - and there will be one - Abbott's opponents will ensure the PM is held responsible for the outcome.

Abbott could almost be forgiven at this point for wondering what on earth he has to do to win favour with Australian voters. He repudiated the unpopular 2014 federal budget and followed it up with an expensive do-no-harm budget in 2015. He stopped the boats (arriving), and demonised asylum seekers enough to get majority community support for offshore detention.

And then there's the succession of flag-based announcements that he made to heighten voter awareness of the terrorist threat the Government is apparently protecting them from.

And yet voters have not responded according to plan, consistently indicating to opinion pollsters that they remain steadfastly ungrateful for the PM's beneficence.

Similarly, Government parliamentarians are not feeling particularly grateful, especially those defending marginal seats. Coalition MPs are becoming increasingly anxious about the ineffectiveness of the "budget, boats and terrorism" strategy. And since the non-leadership spill in February, the Prime Minister has in turn become increasingly anxious about their anxiety.

The Canning by-election threatens to bring this simmering restiveness to a boil.

Abbott is said to have once told country independent MP Tony Windsor that he'd do anything to become PM, other than sell his arse. Yet now that he's Prime Minister, it appears Abbott will do anything to save his arse.

That apparently includes bombing Syria, because there's nothing like a bit of military action to warm the hearts of voters. The emergence of news that the PM's office actually asked Washington to ask us to join the air raids, and that Australia's involvement would add little to the exercise, confirms this latest sortie in Abbott's war on terrorism is little more than a desperate grab for patriotic votes.

The involvement of Border Force officers in last week's aborted Operation Fortitude could easily be seen in the same vein, despite the PM's protestations of "nope, nope, nope" when asked if he knew about the exercise, and Minister Dutton's denial that he or his office had sighted the offending media release.

If the initiative had proceeded, the working and middle class voters of Canning may well have approved of visa-rorters being summarily dealt with by jackbooted customs officers.

Despite beating the drums of war in the air over Syria, the PM is also waving cash under the noses of voters just in case the flags don't work. Or at least the Treasurer is, with Joe Hockey raising the prospect of tax cuts, apparently coincidentally with the by-election.

Troublesome details, such as how the tax cuts will be funded, will not be known before the Canning poll, which renders Hockey's proposal another likely act of last resort, simply aimed at winning over voters.

Regrettably for Hockey, once the Canning outcome is known and Government MPs call for retribution, it appears the PM is prepared to put even the Treasurer's job on the line to save his own.

In a last ditch attempt to head off any leadership manoeuvring by Malcolm Turnbull or Julie Bishop in the lead up to the Canning decision, the PM's office leaked a suggestion to the media that the ministry could be reshuffled at the end of the year. This tactic was aimed at dousing talk of another spill, hopefully due to ambitious MPs assuming they had a better chance of promotion under Abbott than his competitors.

According to media reports, the PM is considering giving the Treasury portfolio to Scott Morrison, who is increasingly seen as the heir apparent by the dominant conservative faction in the Liberal Party. The idea of dumping Hockey for Morrison was leaked to the media on Friday, and the news was followed by a hatchet job on the Treasurer on Sunday in the PM's favourite tabloid.

If Morrison were to accept the role, he would essentially be siding with Abbott and no longer available to team up with Turnbull or Bishop in any leadership contest. Conservative Liberals would stick with Abbott and Morrison, ensuring that neither Turnbull nor Bishop had enough votes to prevail.

To gauge how such a change would go down with voters, the prospect of Hockey being dumped for Morrison has been leaked again to the media today, this time with a suggestion that a double dissolution election could be held in March. This move is the political equivalent of Abbott putting all his money on black; it's a high stakes gamble by a luckless man who has everything to lose.

If he can survive the aftermath of the Canning by-election, the PM has just over a year until he faces the voters again. Even though the latest date on which the federal election can be held is January 14, 2017, the deadline is mid-December in a practical sense because elections are never held during the summer holidays.

Poorly polling governments such as this one have been known to turn their fates around in the final 12 months of an electoral term. But looking at the PM's track record to date, it is difficult to say whether he has the political smarts or capacity to do so.

The increasingly desperate ploys being used by Abbott only reinforce that perception. The more he clutches desperately at ways to bring voters back to the Government, the more Abbott appears unfit to lead it.

Paula Matthewson is a freelance communications adviser and corporate writer. She was media advisor to John Howard in the early 1990s. She tweets and blogs as @Drag0nista.