President Joe Biden's long-delayed trip to Africa was overshadowed by his controversial pardon of his son Hunter.

At the end of a meeting with Angolan President Joao Lourenco, President Biden responded to a shouted question about pardoning his son for all potential federal crimes he committed since 2014: "Welcome to America,

U.S. President Joe Biden landed in Angola on Monday for a visit focused on a U.S.-backed railway project and on the legacy of slavery, but his decision to pardon his son Hunter Biden threatened to overshadow the official agenda.

President Joe Biden is ducking questions on his decision to break his word and pardon his son Hunter, ignoring calls for him to explain his reversal as he was making his first presidential trip to Angola.

President Biden's pardon of Hunter Biden raises questions during his Angola trip, igniting political backlash and controversy over his previous statements.- Watch Video on English Oneindia

President Biden is making good on a promise to visit Africa but faces growing resentment back home after going back on a promise to not pardon his son, Hunter Biden.

A federal judge dismissed the gun case against Hunter Biden on Tuesday after President Joe Biden issued a sweeping pardon for his son. U.S. District Judge Maryellen Noreika closed the case the week before Hunter Biden was to be sentenced.

We always knew Joe Biden would pardon his troubled son Hunter, no matter how many times he promised he wouldn’t.

Hunter Biden pleaded guilty to tax charges earlier in September. He was also found guilty of being an illegal drug user in possession of a gun in June - which made him the first child of a sitting president to be a convicted of a crime.

Democrat strategist David Carlucci has defended Joe Biden’s pardon of Hunter Biden as the US president was “in between a rock and a hard place”.