Postgres SSL Connection

 Using datagrip 2018.2.5 on Windows I am not able to connect to a pg database using a client cert.  I've added ?sslmode=require to the connection url per some articles around but still no luck.  Getting the error: [28000] FATAL: connection requires a valid client certificate

Also in Advanced I set ssl to true, and sslmode to require.  I am using the same key and cert within pgadmin to connect and it works fine.