Just look at the first figure in Paul Krugman's post on Reaganomics
He claims that Reagan's performance on unemployment was not so good. In the figure he starts in the middle of a pre-Reagan recession and ends just before the economy took off. I'm not sure the figure could have been cropped in a way more favorable to Reagan or less convenient for* Krugman.
Now that is honesty.
*mindo corrected. I wrote "of" for "for" for some reason. I am not being at all sarcastic. I really am impressed by Krugman's extraordinary honesty. A time series whcih started earlier and ended later would not have been dishonest and would make Reagan look much worse.