US President Donald Trump (R) and Russia's President Vladimir Putin chat as they walk together to take part in the "family photo" during the Asia-Pacific Economic Cooperation (APEC) leaders' summit in the central Vietnamese city of Danang on November 11, 2017.
World leaders and senior business figures are gathering in the Vietnamese city of Danang this week for the annual 21-member APEC summit. / AFP PHOTO / POOL / JORGE SILVA        (Photo credit should read JORGE SILVA/AFP/Getty Images)
New arms race brewing between US and Russia
The Russian government has said it would be forced "to take measures" if the United States began developing new missile systems, ratcheting up the rhetoric after US President Donald Trump said he would ditch a Cold War-era nuclear arms treaty.
2:36 • Source: CNN
Politics of the Day 11 videos
US President Donald Trump (R) and Russia's President Vladimir Putin chat as they walk together to take part in the "family photo" during the Asia-Pacific Economic Cooperation (APEC) leaders' summit in the central Vietnamese city of Danang on November 11, 2017.
World leaders and senior business figures are gathering in the Vietnamese city of Danang this week for the annual 21-member APEC summit. / AFP PHOTO / POOL / JORGE SILVA        (Photo credit should read JORGE SILVA/AFP/Getty Images)
New arms race brewing between US and Russia
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<p>Trump jokes that not everyone liked Lindsey Graham and he was a tough cookie.</p>
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