No, in 1860 it was Democrats who doubled the national debt in just four years through their profligate & sometimes corrupt over-spending, not Republicans.
It was Democrats who spent what today would be $65 billion on the Gadsden Purchase, so Jefferson Davis could have the new transcontinental railroad pass near his home.
As for alleged "big government" in 1860 the Federal government was about 10% of its current size.
Why would Democrats spend money on railroads and canals in the North? Or are you talking about Northern Democrats?