Related quotes

I Ain't Got Time To Bleed (1999)
Context: People are always shocked when they ask me what I plan to do about crime as governor and my answer comes back as "Nothing!" Does the issue of crime need to be addressed? You bet it does. But, just as with many other social issues, I don't think that legislation is the most effective arena in which to fight crime. We already have tons of laws on the books. Most of those laws would work more effectively if we just enforced them better.
As governor, there isn't a lot I can do beyond that to crack down on crime. Law enforcement is really a local issue. It's the cops' job to tighten down on criminals.
Politicians always like to say "I'm gonna fight crime!" because it makes them sound great and gets them votes. But what can a politician do to fight crime?

“I’m a politician. I agree with the majority of whoever I happen to be with at the moment.”
Source: In the Drift (1985), Chapter 5, “Marrow Death” (p. 151)

1950s, What Desires Are Politically Important? (1950)

Barak Cohen, a former federal prosecutor who does white-collar defense work at Perkins Coie, quoted on Washington Post (January 29, 2016), "McDonnell’s case might help others accused of corruption" https://www.washingtonpost.com/local/public-safety/how-bob-mcdonnell-might-help-others-suspected-of-public-corruption-go-free/2016/01/29/d3e6eb9e-bf96-11e5-bcda-62a36b394160_story.html
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“Yesterday's home runs don't win today's games”
The earliest quotes similar to this are presented as unattributed folk wisdom, such as this example from 1959:
As Brother Allen of Newsweek indicated, it has been fun, but don't try to rest on your laurels. Always remember, “YESTERDAY’S HOME-RUN DOESN’T COUNT IN TODAY’S GAME,” and today’s game is well under way.
The quote does not begin to be attributed to Babe Ruth until the 1980s, nearly 30 years after its first appearance.
Disputed
Source: F. N. Abbott, "On Your Marks", in [The Palm, vol lxxix, no. 1 (February 1959), Harry L., Bird (ed.), 1959, Champaign, IL, Alpha Tau Omega, 17, http://hdl.handle.net/2027/uiuc.1744313v0079?urlappend=%3Bseq=19]
Source: https://books.google.com/books?id=cQsKAQAAMAAJ&dq=%22Yesterday%27s+home+runs%22&focus=searchwithinvolume&q=Ruth