@tax2020return dual status person needs to file both a 1040 ( covering the world income for the resident portion of the year ) and 1040-NR ( covering the Non-Resident portion of the year and on US sourced/connected income ). The only deduction available to such person is Itemized deduction.
What you are asking for is to be considered a resident for the whole year , be taxed on your world income for the whole year and thus avail yourself of the standard deduction.
Does that make sense ?
