Thankfully this little Conservation Park has nothing to do with Shonky Politicians, although its named the Nixon – Skinner Park. Nixon is not the POTUS, Skinner doesn't refer to the ICAC, and the reservoir surrounding this park has nothing to do with Watergate.
Actually its a simple multi. At the given coordinates you will find a plaque outlining the history of this piece of land. Using the plaque you can work out GZ which is not far away.
Reading from left to right, top to bottom there are 12 numeric digits on the plaque.
ABCD EF GH IJKL
The cache is at
S 35 24.CKH E138 25.JIF
Check out the three shonky steps near GZ. Where do they go? Perhaps they are steps to political wilderness....