A President can employ a number of strategies to ensure the successful confirmation of a Supreme Court nominee.
The first is a careful and intense vetting process beforehand to ensure that there are no hidden traps that might derail the nomination.
The second is to employ a legislative "sherpa" to introduce the nominee around the Senate. This is often a former senator who has excellent relations with the other senators and who can vouch for the character and background of the nominee before the Senate.
Stand Watie, a Native American, was a Confederate commander during the Civil War. He remained loyal to the Confederacy throughout the war. He was the last commander to surrender to the union forces after the formal surrender at Appomattox Court House.