Trump tries gunboat diplomacy after wavering on Iran strikes

President Trump is heading into nuclear talks with Iran on Friday, backed by a massive military buildup in the Gulf, with US officials skeptical that Iran's supreme leader will meet his conditions, according to Axios.
The US has moved significant firepower into the region, including an aircraft carrier, with Israel pushing for a strike, but Trump's advisers think launching a military option now wouldn't be the right way to go, with one saying it would undermine the president's agenda.
Iran is stressing that it will only discuss the nuclear issue, not other topics like missiles, and a senior official from a mediating country warned that if Iran doesn't come to the talks with tangible proposals, it could face a "very bad situation", as quoted by Axios.