The chairman of the Joint Development Authority of Jasper, Morgan, Newton and Walton Counties (JDA), which is developing the Stanton Springs mixed-use development where electric vehicle maker Rivian is planning to establish a manufacturing facility, had little to say Tuesday about calls from a co-chair of a governmental cost-cutting commission established by President-elect Donald Trump to claw back a $6.6 billion conditional loan commitment to Rivian for construction of its Stanton Springs facility.