Well, I was just objecting to the incorrect spelling, and have no idea as to how it may apply to any ‘quo warranto’ pursued on the part of President Trump. But the term appears to have to do with ‘due diligence’ and delay in proceeding.
The Internet is still (somewhat) your friend:
http://www.merriam-webster.com/dictionary/laches
http://definitions.uslegal.com/l/laches/
Thanks, I still struggle with estoppel as well. I guess its a good thing I am not a lawyer