Taxpayer received a lump sum payment to relocate.  This lump sum payment was included on his 2018 W-2 as taxable income.  In 2019 he had to repay part of it to his employer.  The repayment amount was over $6,000.  Is there anyway that this repayment can be deducted or adjusted?  Has it or should it have been adjusted on his 2019 W-2.