Freshly indicted First Son Hunter Biden believes his father’s political rivals are aware of his struggles with addiction and are trying to kill him. The 53-year-old businessman scion, who has been under investigation throughout his father’s presidency, was hit with nine tax charges Thursday in California. He also faces a gun charge in Delaware and possible prison time. On the latest episode of the “Moby Pod” podcast, Biden claimed the attacks against him are part of an ongoing effort to “undermine” the president. “They decided that the one way in which they would be able to certainly just unde…