The cliche, from my memory already creaking under the political strain, is that oppositions never win elections, governments lose them.
There's been the Tory candidate in the Gower revealed to have said benefit claimants should be put down.
There's been the pressure on the Welsh secretary Alun Cairns not to stand in the election because of his erstwhile support for a former aide who has been accused of sabotaging a rape trial.
There's been the furore over Conservative Central HQ editing an interviewing with Labour's Brexit spokesman Starmer, such that the story has become one about whether the Tories are spreading fake news rather than what the Tories would prefer which is whether Labour's approach to Brexit is coherent.
And then there has been the chancellor Sajid Javid being slapped down by the Cabinet Secretary for wanting to publish Treasury officials calculations of the cost of Labour's spending plans, in what looked like the misuse of public resources for election propaganda.
Oh, and then there's been Johnson's refusal to publish an official report into Putin's interference in the UK - which has promoted all sorts of conspiracy theories about what the PM may have to hide.
Let's be clear, none of this may be cutting through to anyone but obsessives like you and me. And polling day itself is weeks away.
But coherence, morale and momentum matter in campaigns. And they tend to self-reinforce, in a virtuous or vicious way.
And what may be much more serious for the Tories is less the gaffes and more that their messaging has been all over the shop.
My clear understanding from those controversial "Downing Street Sources" in the past couple of months was that the election would be exclusively about "getting Brexit done", with a bit of window dressing of more money for schools, hospitals and the police,
And that would be the whole thing.
But in the past days and hours pretty much all I've heard from the Tories is "Jews will leave Britain if Corbyn wins", "Corbyn is too cosy with Putin", "Corbyn doesn't believe in profit", "a vote for the LibDems or SNP is a vote for Corbyn", and so on.
Maybe the Tories have secret polling to show that the best way to win the election is to vilify Labour's leader.
But the lesson of Theresa May's ill-fated 2017 election was that demonising Corbyn deified him amongst his supporters, felt over-the-top to neutrals and simply shored up a bunch of Tory supporters who were never going to vote Labour.
And a prime minister who owns a closet full of skeletons risks legitimising a race-to-the-bottom in ad hominem attacks.
To state the obvious, it is early days.
And Boris Johnson is not in fact launching the Tories' official campaign till 7.30 tonight.
Perhaps after that there will be shape and discipline to their game. But with Labour's ground and digital game looking professional, focussed and ruthless, the Tories may well have a bigger problem than they may choose to admit.
Calling Peston: The ITV News Election Podcast
In a new daily podcast, Calling Peston will bring you up to speed with everything you need to know about the 2019 General Election, with a new episode released every weekday afternoon at 5pm.
ITV News Political Reporters Daniel Hewitt and Shehab Khan will chat through the day's developments - and call Political Editor Robert Peston to get his take on it all. We'll also take you behind the scenes of life reporting on the election campaign trail, hearing from our reporters on the road across the country.
Our first episode will be out on Wednesday November 6 - listen below for a taste of what to expect.