Baku. 24 July. REPORT.AZ/ President Barack Obama has admitted that his failure to pass "common sense gun safety laws" in the US is the greatest frustration of his presidency.
In an interview with the BBC, Mr Obama said it was "distressing" not to have made progress on the issue "even in the face of repeated mass killings".
He vowed to keep trying, but the BBC's North America editor Jon Sopel said the president did not sound very confident.
However, Mr Obama said race relations had improved during his presidency.
In a wide-ranging interview, President Obama also said:
The UK must stay in the EU to have influence on the world stage
He is confident the Iran nuclear deal will be passed by Congress
Syria needs a political solution in order to defeat the Islamic State group
He would speak "bluntly" against corruption and human rights violations in Kenya
He would defend his advocacy of gay rights following protests in Kenya
Despite racial tensions, the US is becoming more diverse and more tolerant
Mr Obama lands in Kenya later on Friday for his first visit since becoming president.
But with just 18 months left in power, he said gun control was the area where he has been "most frustrated and most stymied" since coming to power in 2009.
"If you look at the number of Americans killed since 9/11 by terrorism, it's less than 100. If you look at the number that have been killed by gun violence, it's in the tens of thousands," Mr Obama said.