free soil
President James Polk
Yes. Slavery was legal in the southern states when Polk was president.
Abolitioning slavery
There is no annexation treaty of Texas, but James Polk was President when Texas was annexed by joint resolution of Congress.
James K. Polk (I think)
US President James Buchanan.
James Wilson and Gouvernor Morris, both of Pennsylvania. No other state supported this proposal.
James Madison was President when the War of 1812 was fought. He was not a leader among the War Hawks who favored war but eventually he came to agree with them that war was inevitable and he did ask Congress to declare war on Britain.
James K. Polk (term: 1845-1849) qualifies as such.
James D. Foust has written: 'The yeoman farmer and westward expansion of U.S. cotton production' -- subject(s): Cotton growing, Extension to the territories, Farmers, History, Slavery
Was James McHenry for or against anti-slavery
Slavery was the major issue in the 1856 election. Democratic Party candidate James Buchanan endorsed popular sovereignty giving the power to determine the legality of slavery to the inhabitants of the territory seeking statehood, rather than to Congress. The Republican Party opposed the extension of slavery into the territories. Buchanan warned that if the Republicans won the election, their anti-slavery position would lead to civil war.