Senator John McCain was hospitalized again and asked son-in-law to look after his daughter

The Arizona Senator was rushed to the hospital due to an intestinal issue known as diverticulitis and might be preparing for the worst.

The 81-year-old politician's health has been declining ever since he was diagnosed with glioblastoma, a very rare, aggressive and deadly form of brain cancer, in 2017.

The news of the most recent hospitalization was delivered by his son-in-law, Ben Domenech, a conservative writer, through his Twitter page, as reported by CBS News.

The post was shared with his fans and followers on Saturday, but it was later deleted for unknown reasons. It said that the Senator had been rushed to the hospital and that he asked Domenech to take care of his daughter for him.

No further information has been released since then, but it is clear that McCain's health isn't improving. Upon being diagnosed, doctors told the Senator that his chances of survival were between 3 and 14 percent.

"So I just said, 'I understand. Now we're going to do what we can, get the best doctors we can find and do the best we can.' And, at the same time, celebrate with gratitude a life well lived."

John McCain, CBS News, September 22, 2017

Despite the grim prognosis, the 81-year-old revealed his fighting spirit through his smile, which inspired his daughter, Meghan, to be positive and stay right by her father's side through this tough phase of his life.

But McCain is no stranger to adversity. In fact, he has faced death a couple of times in the past. In 1967, his plane was shot down during a bombing mission in Hanoi and spent 5 years in captivity as a prisoner of war in North Vietnam.

As his time draws near, he just wants to make sure that his family, especially his daughter, will be fine without him, and he's counting on Domenech to take his place as the head of the McCain clan.