They’re buddying up against an increasingly aggressive China. Obama hosted historic talks in the Oval Office yesterday with Communist Party leader Nguyen Phu Trong, the first such meeting since the countries normalized relations in 1995. The glad-handing didn’t extend outside, where protesters gathered to decry Hanoi’s restrictions on free speech and detainment of political prisoners. But the politicians carried on, discussing human rights, trade and the South China Sea in a bid to bolster cooperation. And, accepting Trong’s invitation, Obama said he would reciprocate and visit Vietnam.