Michele Bachmann supports enforcement of America's immigration laws and securing our borders.
Rick Perry has ridiculed the idea of a border fence between the United States and Mexico calling it, "idiocy," "ridiculous," "nonsense," "absolutely not the answer."
Sources:
http://www.wnd.com/?pageId=333669
http://www.topix.com/forum/state/tx-gov/T4ECG4R7GPJ6B21TP
http://www.youtube.com/watch?v=C1DqcdL6_wE
Rick Perry supports a virtual fence as an alternative to a full-fledged Gulf-of-Mexico-to-Pacific fence.
But a high tech fence doesn't seem to work—it was a failure under both the Bush and Obama administrations.
Sources:
http://www.zdnet.com/blog/projectfailures/boeing-virtual-fence-30-billion-failure/362
http://www.zdnet.com/blog/projectfailures/update-boeing-virtual-fence-unusable/403
"Homeland Security Cancels 'Virtual Fence' After $1 Billion Is Spent." (New York Times, 1/14/2011.)
Source:
http://www.nytimes.com/2011/01/15/us/politics/15fence.html
Michele Bachmann, Bachmann Campaign Press Release - Rick Perry Ridicules Border Fence Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/298979