WASHINGTON – With the government heading toward a year-end “fiscal cliff,” House Republicans approved a full plate of Bush-era tax cuts Wednesday that they said could shore up a frail national economy.

At the same time, the Obama administration warned that threatened budget cuts could send some of America’s troops into battle with less training.

For all of the action and talk, however, both taxes and spending were deeply enmeshed in campaign politics, with no resolution expected until after the elections.