  As both Parker Solar Probe (PSP) and Solar Orbiter (SolO) reach heliocentric
distances closer to the Sun, they present an exciting opportunity to study the
structure of CMEs in the inner heliosphere. We present an analysis of the
global flux rope structure of the 2022 September 5 CME event that impacted PSP
at a heliocentric distance of only 0.07 au and SolO at 0.69 au. We compare in
situ measurements at PSP and SolO to determine global and local expansion
measures, finding a good agreement between magnetic field relationships with
heliocentric distance, but significant differences with respect to flux rope
size. We use PSP/WISPR images as input to the ELEvoHI model, providing a direct
link between remote and in situ observations; we find a large discrepancy
between the resulting modeled arrival times, suggesting that the underlying
model assumptions may not be suitable when using data obtained close to the
Sun, where the drag regime is markedly different in comparison to larger
heliocentric distances. Finally, we fit the SolO/MAG and PSP/FIELDS data
independently with the 3DCORE model and find that many parameters are
consistent between spacecraft, however, challenges are apparent when
reconstructing a global 3D structure that aligns with arrival times at PSP and
Solar Orbiter, likely due to the large radial and longitudinal separations
between spacecraft. From our model results, it is clear the solar wind
background speed and drag regime strongly affect the modeled expansion and
propagation of CMEs and need to be taken into consideration.
