Legal manoeuvres begin a day after Gov. Walker signs it.
Fraser Institute study says they discourage investment and job growth.
Shipments are still 15% below pre-recession and the sector has recovered only 8,300 of the 43,400 jobs lost between 2007 and 2009.
A concerted war on labour threatens to weaken the bargaining power of American unions, US vice-president tell auto conference.
Jerry Dias says Hudak is promoting legislation that would gut Ontario labour laws.
Will it boost manufacturing?