Example, at the bottom of the Reagan bio...
Did you know?
President Reagan designated Martin Luther King Jr. Day a national holiday; today the Obama Administration honors this tradition, with the First and Second Families participating in service projects on this day.
In a June 28, 1985 speech Reagan called for a fairer tax code, one where a multi-millionaire did not have a lower tax rate than his secretary. Today, President Obama is calling for the same with the Buffett Rule.
I haven't actually read them all, but supposedly they did this in the bios of every president for the past 90 years. Except Gerald Ford.
Yes, even Carter.
Look quick, if you're interested. That rumbling sound in the background is the Memory Hole going into gear.